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Finding the Fourth Proportional to 108,730, 150,047.67 and 63,439.12

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Solution

The fourth proportional to 108,730, 150,047.67 and 63,439.12 is: 87,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,730 : 150,047.67 = 63,439.12 : x
  2. Step 2: Convert to fraction form
    108,730/150,047.67 = 63,439.12/x
  3. Step 3: Cross multiply
    108,730x = 150,047.67 × 63,439.12
  4. Step 4: Simplify right side
    108,730x = 9,518,892,142.85
  5. Step 5: Solve for x
    x = 9,518,892,142.85/108,730
  6. Step 6: Final answer
    x = 87,546.14

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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.