Home / 108,423.28-149,626.16-60,681.88

Finding the Fourth Proportional to 108,423.28, 149,626.16 and 60,681.88

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Solution

The fourth proportional to 108,423.28, 149,626.16 and 60,681.88 is: 83,742.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,423.28 : 149,626.16 = 60,681.88 : x
  2. Step 2: Convert to fraction form
    108,423.28/149,626.16 = 60,681.88/x
  3. Step 3: Cross multiply
    108,423.28x = 149,626.16 × 60,681.88
  4. Step 4: Simplify right side
    108,423.28x = 9,079,596,685.98
  5. Step 5: Solve for x
    x = 9,079,596,685.98/108,423.28
  6. Step 6: Final answer
    x = 83,742.13

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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.