Home / 124,915.28-172,367.04-76,538.84

Finding the Fourth Proportional to 124,915.28, 172,367.04 and 76,538.84

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Solution

The fourth proportional to 124,915.28, 172,367.04 and 76,538.84 is: 105,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,915.28 : 172,367.04 = 76,538.84 : x
  2. Step 2: Convert to fraction form
    124,915.28/172,367.04 = 76,538.84/x
  3. Step 3: Cross multiply
    124,915.28x = 172,367.04 × 76,538.84
  4. Step 4: Simplify right side
    124,915.28x = 13,192,773,295.83
  5. Step 5: Solve for x
    x = 13,192,773,295.83/124,915.28
  6. Step 6: Final answer
    x = 105,613.77

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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.