Home / 115,335.03-172,919.52-70,869.92

Finding the Fourth Proportional to 115,335.03, 172,919.52 and 70,869.92

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Solution

The fourth proportional to 115,335.03, 172,919.52 and 70,869.92 is: 106,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,335.03 : 172,919.52 = 70,869.92 : x
  2. Step 2: Convert to fraction form
    115,335.03/172,919.52 = 70,869.92/x
  3. Step 3: Cross multiply
    115,335.03x = 172,919.52 × 70,869.92
  4. Step 4: Simplify right side
    115,335.03x = 12,254,791,684.24
  5. Step 5: Solve for x
    x = 12,254,791,684.24/115,335.03
  6. Step 6: Final answer
    x = 106,253.85

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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.