Home / 102,500.20-153,750.30-101,117.80

Finding the Fourth Proportional to 102,500.20, 153,750.30 and 101,117.80

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Solution

The fourth proportional to 102,500.20, 153,750.30 and 101,117.80 is: 151,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,500.20 : 153,750.30 = 101,117.80 : x
  2. Step 2: Convert to fraction form
    102,500.20/153,750.30 = 101,117.80/x
  3. Step 3: Cross multiply
    102,500.20x = 153,750.30 × 101,117.80
  4. Step 4: Simplify right side
    102,500.20x = 15,546,892,085.34
  5. Step 5: Solve for x
    x = 15,546,892,085.34/102,500.20
  6. Step 6: Final answer
    x = 151,676.70

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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.