Home / 153,319.42-211,612.26-89,672.86

Finding the Fourth Proportional to 153,319.42, 211,612.26 and 89,672.86

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Solution

The fourth proportional to 153,319.42, 211,612.26 and 89,672.86 is: 123,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,319.42 : 211,612.26 = 89,672.86 : x
  2. Step 2: Convert to fraction form
    153,319.42/211,612.26 = 89,672.86/x
  3. Step 3: Cross multiply
    153,319.42x = 211,612.26 × 89,672.86
  4. Step 4: Simplify right side
    153,319.42x = 18,975,876,565.26
  5. Step 5: Solve for x
    x = 18,975,876,565.26/153,319.42
  6. Step 6: Final answer
    x = 123,766.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.