Home / 168,758.20-253,137.30-89,831.80

Finding the Fourth Proportional to 168,758.20, 253,137.30 and 89,831.80

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Solution

The fourth proportional to 168,758.20, 253,137.30 and 89,831.80 is: 134,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,758.20 : 253,137.30 = 89,831.80 : x
  2. Step 2: Convert to fraction form
    168,758.20/253,137.30 = 89,831.80/x
  3. Step 3: Cross multiply
    168,758.20x = 253,137.30 × 89,831.80
  4. Step 4: Simplify right side
    168,758.20x = 22,739,779,306.14
  5. Step 5: Solve for x
    x = 22,739,779,306.14/168,758.20
  6. Step 6: Final answer
    x = 134,747.70

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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.