Home / 155,479.43-214,565.76-87,498.83

Finding the Fourth Proportional to 155,479.43, 214,565.76 and 87,498.83

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Solution

The fourth proportional to 155,479.43, 214,565.76 and 87,498.83 is: 120,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,479.43 : 214,565.76 = 87,498.83 : x
  2. Step 2: Convert to fraction form
    155,479.43/214,565.76 = 87,498.83/x
  3. Step 3: Cross multiply
    155,479.43x = 214,565.76 × 87,498.83
  4. Step 4: Simplify right side
    155,479.43x = 18,774,253,494.48
  5. Step 5: Solve for x
    x = 18,774,253,494.48/155,479.43
  6. Step 6: Final answer
    x = 120,750.72

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1.5x scale

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.