Home / 108,685.13-149,976.77-60,931.98

Finding the Fourth Proportional to 108,685.13, 149,976.77 and 60,931.98

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Solution

The fourth proportional to 108,685.13, 149,976.77 and 60,931.98 is: 84,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,685.13 : 149,976.77 = 60,931.98 : x
  2. Step 2: Convert to fraction form
    108,685.13/149,976.77 = 60,931.98/x
  3. Step 3: Cross multiply
    108,685.13x = 149,976.77 × 60,931.98
  4. Step 4: Simplify right side
    108,685.13x = 9,138,381,245.44
  5. Step 5: Solve for x
    x = 9,138,381,245.44/108,685.13
  6. Step 6: Final answer
    x = 84,081.25

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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.