Home / 131,617.60-197,426.40-89,627.20

Finding the Fourth Proportional to 131,617.60, 197,426.40 and 89,627.20

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Solution

The fourth proportional to 131,617.60, 197,426.40 and 89,627.20 is: 134,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,617.60 : 197,426.40 = 89,627.20 : x
  2. Step 2: Convert to fraction form
    131,617.60/197,426.40 = 89,627.20/x
  3. Step 3: Cross multiply
    131,617.60x = 197,426.40 × 89,627.20
  4. Step 4: Simplify right side
    131,617.60x = 17,694,775,438.08
  5. Step 5: Solve for x
    x = 17,694,775,438.08/131,617.60
  6. Step 6: Final answer
    x = 134,440.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.