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Finding the Fourth Proportional to 149,810.60, 224,813.10 and 86,630.60

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Solution

The fourth proportional to 149,810.60, 224,813.10 and 86,630.60 is: 130,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,810.60 : 224,813.10 = 86,630.60 : x
  2. Step 2: Convert to fraction form
    149,810.60/224,813.10 = 86,630.60/x
  3. Step 3: Cross multiply
    149,810.60x = 224,813.10 × 86,630.60
  4. Step 4: Simplify right side
    149,810.60x = 19,475,693,740.86
  5. Step 5: Solve for x
    x = 19,475,693,740.86/149,810.60
  6. Step 6: Final answer
    x = 130,002.11

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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.