Home / 113,220.89-156,404.27-107,242.18

Finding the Fourth Proportional to 113,220.89, 156,404.27 and 107,242.18

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Solution

The fourth proportional to 113,220.89, 156,404.27 and 107,242.18 is: 148,145.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,220.89 : 156,404.27 = 107,242.18 : x
  2. Step 2: Convert to fraction form
    113,220.89/156,404.27 = 107,242.18/x
  3. Step 3: Cross multiply
    113,220.89x = 156,404.27 × 107,242.18
  4. Step 4: Simplify right side
    113,220.89x = 16,773,134,149.97
  5. Step 5: Solve for x
    x = 16,773,134,149.97/113,220.89
  6. Step 6: Final answer
    x = 148,145.23

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1.5x scale

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.