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Finding the Fourth Proportional to 125,007.28, 172,510.50 and 67,646.60

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Solution

The fourth proportional to 125,007.28, 172,510.50 and 67,646.60 is: 93,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,007.28 : 172,510.50 = 67,646.60 : x
  2. Step 2: Convert to fraction form
    125,007.28/172,510.50 = 67,646.60/x
  3. Step 3: Cross multiply
    125,007.28x = 172,510.50 × 67,646.60
  4. Step 4: Simplify right side
    125,007.28x = 11,669,748,611.70
  5. Step 5: Solve for x
    x = 11,669,748,611.70/125,007.28
  6. Step 6: Final answer
    x = 93,352.55

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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.