Home / 124,861.32-172,299.83-76,471.38

Finding the Fourth Proportional to 124,861.32, 172,299.83 and 76,471.38

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Solution

The fourth proportional to 124,861.32, 172,299.83 and 76,471.38 is: 105,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,861.32 : 172,299.83 = 76,471.38 : x
  2. Step 2: Convert to fraction form
    124,861.32/172,299.83 = 76,471.38/x
  3. Step 3: Cross multiply
    124,861.32x = 172,299.83 × 76,471.38
  4. Step 4: Simplify right side
    124,861.32x = 13,176,005,391.51
  5. Step 5: Solve for x
    x = 13,176,005,391.51/124,861.32
  6. Step 6: Final answer
    x = 105,525.12

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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.