Home / 124,751.52-172,096.96-90,707.20

Finding the Fourth Proportional to 124,751.52, 172,096.96 and 90,707.20

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Solution

The fourth proportional to 124,751.52, 172,096.96 and 90,707.20 is: 125,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,751.52 : 172,096.96 = 90,707.20 : x
  2. Step 2: Convert to fraction form
    124,751.52/172,096.96 = 90,707.20/x
  3. Step 3: Cross multiply
    124,751.52x = 172,096.96 × 90,707.20
  4. Step 4: Simplify right side
    124,751.52x = 15,610,433,370.11
  5. Step 5: Solve for x
    x = 15,610,433,370.11/124,751.52
  6. Step 6: Final answer
    x = 125,132.21

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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.