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Finding the Fourth Proportional to 125,377.68, 173,018.19 and 69,432.45

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Solution

The fourth proportional to 125,377.68, 173,018.19 and 69,432.45 is: 95,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,377.68 : 173,018.19 = 69,432.45 : x
  2. Step 2: Convert to fraction form
    125,377.68/173,018.19 = 69,432.45/x
  3. Step 3: Cross multiply
    125,377.68x = 173,018.19 × 69,432.45
  4. Step 4: Simplify right side
    125,377.68x = 12,013,076,479.10
  5. Step 5: Solve for x
    x = 12,013,076,479.10/125,377.68
  6. Step 6: Final answer
    x = 95,815.11

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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.