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Finding the Fourth Proportional to 149,790.60, 224,783.10 and 86,610.60

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Solution

The fourth proportional to 149,790.60, 224,783.10 and 86,610.60 is: 129,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,790.60 : 224,783.10 = 86,610.60 : x
  2. Step 2: Convert to fraction form
    149,790.60/224,783.10 = 86,610.60/x
  3. Step 3: Cross multiply
    149,790.60x = 224,783.10 × 86,610.60
  4. Step 4: Simplify right side
    149,790.60x = 19,468,599,160.86
  5. Step 5: Solve for x
    x = 19,468,599,160.86/149,790.60
  6. Step 6: Final answer
    x = 129,972.10

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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.