Home / 108,435.12-149,635.68-63,114.48

Finding the Fourth Proportional to 108,435.12, 149,635.68 and 63,114.48

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Solution

The fourth proportional to 108,435.12, 149,635.68 and 63,114.48 is: 87,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,435.12 : 149,635.68 = 63,114.48 : x
  2. Step 2: Convert to fraction form
    108,435.12/149,635.68 = 63,114.48/x
  3. Step 3: Cross multiply
    108,435.12x = 149,635.68 × 63,114.48
  4. Step 4: Simplify right side
    108,435.12x = 9,444,178,132.65
  5. Step 5: Solve for x
    x = 9,444,178,132.65/108,435.12
  6. Step 6: Final answer
    x = 87,095.20

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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.