Home / 99,712.20-149,465.70-43,541.81

Finding the Fourth Proportional to 99,712.20, 149,465.70 and 43,541.81

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Solution

The fourth proportional to 99,712.20, 149,465.70 and 43,541.81 is: 65,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712.20 : 149,465.70 = 43,541.81 : x
  2. Step 2: Convert to fraction form
    99,712.20/149,465.70 = 43,541.81/x
  3. Step 3: Cross multiply
    99,712.20x = 149,465.70 × 43,541.81
  4. Step 4: Simplify right side
    99,712.20x = 6,508,006,924.08
  5. Step 5: Solve for x
    x = 6,508,006,924.08/99,712.20
  6. Step 6: Final answer
    x = 65,267.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.