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Finding the Fourth Proportional to 99,353.66, 137,038.65 and 67,467.20

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Solution

The fourth proportional to 99,353.66, 137,038.65 and 67,467.20 is: 93,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,353.66 : 137,038.65 = 67,467.20 : x
  2. Step 2: Convert to fraction form
    99,353.66/137,038.65 = 67,467.20/x
  3. Step 3: Cross multiply
    99,353.66x = 137,038.65 × 67,467.20
  4. Step 4: Simplify right side
    99,353.66x = 9,245,614,007.28
  5. Step 5: Solve for x
    x = 9,245,614,007.28/99,353.66
  6. Step 6: Final answer
    x = 93,057.61

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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.