Home / 124,715.08-172,110.18-74,443.24

Finding the Fourth Proportional to 124,715.08, 172,110.18 and 74,443.24

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Solution

The fourth proportional to 124,715.08, 172,110.18 and 74,443.24 is: 102,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.08 : 172,110.18 = 74,443.24 : x
  2. Step 2: Convert to fraction form
    124,715.08/172,110.18 = 74,443.24/x
  3. Step 3: Cross multiply
    124,715.08x = 172,110.18 × 74,443.24
  4. Step 4: Simplify right side
    124,715.08x = 12,812,439,436.18
  5. Step 5: Solve for x
    x = 12,812,439,436.18/124,715.08
  6. Step 6: Final answer
    x = 102,733.68

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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.