Home / 127,287.50-175,648.30-69,915.66

Finding the Fourth Proportional to 127,287.50, 175,648.30 and 69,915.66

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Solution

The fourth proportional to 127,287.50, 175,648.30 and 69,915.66 is: 96,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,287.50 : 175,648.30 = 69,915.66 : x
  2. Step 2: Convert to fraction form
    127,287.50/175,648.30 = 69,915.66/x
  3. Step 3: Cross multiply
    127,287.50x = 175,648.30 × 69,915.66
  4. Step 4: Simplify right side
    127,287.50x = 12,280,566,822.38
  5. Step 5: Solve for x
    x = 12,280,566,822.38/127,287.50
  6. Step 6: Final answer
    x = 96,478.97

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1.5x scale

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.