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Finding the Fourth Proportional to 99,575.44, 137,464.88 and 67,479.61

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Solution

The fourth proportional to 99,575.44, 137,464.88 and 67,479.61 is: 93,156.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,575.44 : 137,464.88 = 67,479.61 : x
  2. Step 2: Convert to fraction form
    99,575.44/137,464.88 = 67,479.61/x
  3. Step 3: Cross multiply
    99,575.44x = 137,464.88 × 67,479.61
  4. Step 4: Simplify right side
    99,575.44x = 9,276,076,491.10
  5. Step 5: Solve for x
    x = 9,276,076,491.10/99,575.44
  6. Step 6: Final answer
    x = 93,156.27

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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.