Home / 100,731.60-151,097.40-89,845.20

Finding the Fourth Proportional to 100,731.60, 151,097.40 and 89,845.20

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Solution

The fourth proportional to 100,731.60, 151,097.40 and 89,845.20 is: 134,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,731.60 : 151,097.40 = 89,845.20 : x
  2. Step 2: Convert to fraction form
    100,731.60/151,097.40 = 89,845.20/x
  3. Step 3: Cross multiply
    100,731.60x = 151,097.40 × 89,845.20
  4. Step 4: Simplify right side
    100,731.60x = 13,575,376,122.48
  5. Step 5: Solve for x
    x = 13,575,376,122.48/100,731.60
  6. Step 6: Final answer
    x = 134,767.80

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1.5x scale

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.