Home / 108,088.96-149,120.40-62,759.20

Finding the Fourth Proportional to 108,088.96, 149,120.40 and 62,759.20

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Solution

The fourth proportional to 108,088.96, 149,120.40 and 62,759.20 is: 86,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,088.96 : 149,120.40 = 62,759.20 : x
  2. Step 2: Convert to fraction form
    108,088.96/149,120.40 = 62,759.20/x
  3. Step 3: Cross multiply
    108,088.96x = 149,120.40 × 62,759.20
  4. Step 4: Simplify right side
    108,088.96x = 9,358,677,007.68
  5. Step 5: Solve for x
    x = 9,358,677,007.68/108,088.96
  6. Step 6: Final answer
    x = 86,583.10

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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.