Home / 125,312.71-172,929.28-70,864.04

Finding the Fourth Proportional to 125,312.71, 172,929.28 and 70,864.04

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Solution

The fourth proportional to 125,312.71, 172,929.28 and 70,864.04 is: 97,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,312.71 : 172,929.28 = 70,864.04 : x
  2. Step 2: Convert to fraction form
    125,312.71/172,929.28 = 70,864.04/x
  3. Step 3: Cross multiply
    125,312.71x = 172,929.28 × 70,864.04
  4. Step 4: Simplify right side
    125,312.71x = 12,254,467,316.76
  5. Step 5: Solve for x
    x = 12,254,467,316.76/125,312.71
  6. Step 6: Final answer
    x = 97,791.10

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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.