Home / 108,981.40-150,398.76-61,234.60

Finding the Fourth Proportional to 108,981.40, 150,398.76 and 61,234.60

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Solution

The fourth proportional to 108,981.40, 150,398.76 and 61,234.60 is: 84,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,981.40 : 150,398.76 = 61,234.60 : x
  2. Step 2: Convert to fraction form
    108,981.40/150,398.76 = 61,234.60/x
  3. Step 3: Cross multiply
    108,981.40x = 150,398.76 × 61,234.60
  4. Step 4: Simplify right side
    108,981.40x = 9,209,607,909.10
  5. Step 5: Solve for x
    x = 9,209,607,909.10/108,981.40
  6. Step 6: Final answer
    x = 84,506.24

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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.