Home / 125,685.75-173,428.29-73,972.10

Finding the Fourth Proportional to 125,685.75, 173,428.29 and 73,972.10

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Solution

The fourth proportional to 125,685.75, 173,428.29 and 73,972.10 is: 102,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,685.75 : 173,428.29 = 73,972.10 : x
  2. Step 2: Convert to fraction form
    125,685.75/173,428.29 = 73,972.10/x
  3. Step 3: Cross multiply
    125,685.75x = 173,428.29 × 73,972.10
  4. Step 4: Simplify right side
    125,685.75x = 12,828,855,244.28
  5. Step 5: Solve for x
    x = 12,828,855,244.28/125,685.75
  6. Step 6: Final answer
    x = 102,070.88

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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.