Home / 108,515.61-149,758.65-60,772.05

Finding the Fourth Proportional to 108,515.61, 149,758.65 and 60,772.05

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Solution

The fourth proportional to 108,515.61, 149,758.65 and 60,772.05 is: 83,869.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,515.61 : 149,758.65 = 60,772.05 : x
  2. Step 2: Convert to fraction form
    108,515.61/149,758.65 = 60,772.05/x
  3. Step 3: Cross multiply
    108,515.61x = 149,758.65 × 60,772.05
  4. Step 4: Simplify right side
    108,515.61x = 9,101,140,165.73
  5. Step 5: Solve for x
    x = 9,101,140,165.73/108,515.61
  6. Step 6: Final answer
    x = 83,869.41

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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.