Home / 124,705,763.11-172,056,155.83-87,027,924.81

Finding the Fourth Proportional to 124,705,763.11, 172,056,155.83 and 87,027,924.81

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Solution

The fourth proportional to 124,705,763.11, 172,056,155.83 and 87,027,924.81 is: 120,072,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,705,763.11 : 172,056,155.83 = 87,027,924.81 : x
  2. Step 2: Convert to fraction form
    124,705,763.11/172,056,155.83 = 87,027,924.81/x
  3. Step 3: Cross multiply
    124,705,763.11x = 172,056,155.83 × 87,027,924.81
  4. Step 4: Simplify right side
    124,705,763.11x = 14,973,690,192,670,884
  5. Step 5: Solve for x
    x = 14,973,690,192,670,884/124,705,763.11
  6. Step 6: Final answer
    x = 120,072,158.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.