Home / 151,720.20-227,580.30-77,070.60

Finding the Fourth Proportional to 151,720.20, 227,580.30 and 77,070.60

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Solution

The fourth proportional to 151,720.20, 227,580.30 and 77,070.60 is: 115,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,720.20 : 227,580.30 = 77,070.60 : x
  2. Step 2: Convert to fraction form
    151,720.20/227,580.30 = 77,070.60/x
  3. Step 3: Cross multiply
    151,720.20x = 227,580.30 × 77,070.60
  4. Step 4: Simplify right side
    151,720.20x = 17,539,750,269.18
  5. Step 5: Solve for x
    x = 17,539,750,269.18/151,720.20
  6. Step 6: Final answer
    x = 115,605.90

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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.