Home / 88,945.20-133,417.80-85,008.60

Finding the Fourth Proportional to 88,945.20, 133,417.80 and 85,008.60

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Solution

The fourth proportional to 88,945.20, 133,417.80 and 85,008.60 is: 127,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,945.20 : 133,417.80 = 85,008.60 : x
  2. Step 2: Convert to fraction form
    88,945.20/133,417.80 = 85,008.60/x
  3. Step 3: Cross multiply
    88,945.20x = 133,417.80 × 85,008.60
  4. Step 4: Simplify right side
    88,945.20x = 11,341,660,393.08
  5. Step 5: Solve for x
    x = 11,341,660,393.08/88,945.20
  6. Step 6: Final answer
    x = 127,512.90

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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.