Home / 121,778.97-182,666.30-46,915.35

Finding the Fourth Proportional to 121,778.97, 182,666.30 and 46,915.35

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Solution

The fourth proportional to 121,778.97, 182,666.30 and 46,915.35 is: 70,372.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,778.97 : 182,666.30 = 46,915.35 : x
  2. Step 2: Convert to fraction form
    121,778.97/182,666.30 = 46,915.35/x
  3. Step 3: Cross multiply
    121,778.97x = 182,666.30 × 46,915.35
  4. Step 4: Simplify right side
    121,778.97x = 8,569,853,163.13
  5. Step 5: Solve for x
    x = 8,569,853,163.13/121,778.97
  6. Step 6: Final answer
    x = 70,372.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.