Home / 125,101.32-172,639.50-67,740.69

Finding the Fourth Proportional to 125,101.32, 172,639.50 and 67,740.69

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Solution

The fourth proportional to 125,101.32, 172,639.50 and 67,740.69 is: 93,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,101.32 : 172,639.50 = 67,740.69 : x
  2. Step 2: Convert to fraction form
    125,101.32/172,639.50 = 67,740.69/x
  3. Step 3: Cross multiply
    125,101.32x = 172,639.50 × 67,740.69
  4. Step 4: Simplify right side
    125,101.32x = 11,694,718,851.26
  5. Step 5: Solve for x
    x = 11,694,718,851.26/125,101.32
  6. Step 6: Final answer
    x = 93,481.98

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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.