Home / 108,117.80-149,188.64-60,373.16

Finding the Fourth Proportional to 108,117.80, 149,188.64 and 60,373.16

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Solution

The fourth proportional to 108,117.80, 149,188.64 and 60,373.16 is: 83,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,117.80 : 149,188.64 = 60,373.16 : x
  2. Step 2: Convert to fraction form
    108,117.80/149,188.64 = 60,373.16/x
  3. Step 3: Cross multiply
    108,117.80x = 149,188.64 × 60,373.16
  4. Step 4: Simplify right side
    108,117.80x = 9,006,988,585.09
  5. Step 5: Solve for x
    x = 9,006,988,585.09/108,117.80
  6. Step 6: Final answer
    x = 83,307.18

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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.