Home / 124,382.75-171,672.68-86,635.13

Finding the Fourth Proportional to 124,382.75, 171,672.68 and 86,635.13

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Solution

The fourth proportional to 124,382.75, 171,672.68 and 86,635.13 is: 119,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,382.75 : 171,672.68 = 86,635.13 : x
  2. Step 2: Convert to fraction form
    124,382.75/171,672.68 = 86,635.13/x
  3. Step 3: Cross multiply
    124,382.75x = 171,672.68 × 86,635.13
  4. Step 4: Simplify right side
    124,382.75x = 14,872,884,307.47
  5. Step 5: Solve for x
    x = 14,872,884,307.47/124,382.75
  6. Step 6: Final answer
    x = 119,573.53

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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.