Home / 156,089.79-215,351.15-101,617.02

Finding the Fourth Proportional to 156,089.79, 215,351.15 and 101,617.02

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Solution

The fourth proportional to 156,089.79, 215,351.15 and 101,617.02 is: 140,197.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,089.79 : 215,351.15 = 101,617.02 : x
  2. Step 2: Convert to fraction form
    156,089.79/215,351.15 = 101,617.02/x
  3. Step 3: Cross multiply
    156,089.79x = 215,351.15 × 101,617.02
  4. Step 4: Simplify right side
    156,089.79x = 21,883,341,608.49
  5. Step 5: Solve for x
    x = 21,883,341,608.49/156,089.79
  6. Step 6: Final answer
    x = 140,197.14

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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.