Home / 90,157.86-124,446.78-63,306.90

Finding the Fourth Proportional to 90,157.86, 124,446.78 and 63,306.90

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Solution

The fourth proportional to 90,157.86, 124,446.78 and 63,306.90 is: 87,383.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,157.86 : 124,446.78 = 63,306.90 : x
  2. Step 2: Convert to fraction form
    90,157.86/124,446.78 = 63,306.90/x
  3. Step 3: Cross multiply
    90,157.86x = 124,446.78 × 63,306.90
  4. Step 4: Simplify right side
    90,157.86x = 7,878,339,856.78
  5. Step 5: Solve for x
    x = 7,878,339,856.78/90,157.86
  6. Step 6: Final answer
    x = 87,383.84

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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.