Home / 125,020.76-172,528.64-68,432.12

Finding the Fourth Proportional to 125,020.76, 172,528.64 and 68,432.12

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Solution

The fourth proportional to 125,020.76, 172,528.64 and 68,432.12 is: 94,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,020.76 : 172,528.64 = 68,432.12 : x
  2. Step 2: Convert to fraction form
    125,020.76/172,528.64 = 68,432.12/x
  3. Step 3: Cross multiply
    125,020.76x = 172,528.64 × 68,432.12
  4. Step 4: Simplify right side
    125,020.76x = 11,806,500,595.92
  5. Step 5: Solve for x
    x = 11,806,500,595.92/125,020.76
  6. Step 6: Final answer
    x = 94,436.32

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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.