Home / 90,863.90-136,441.65-61,412.30

Finding the Fourth Proportional to 90,863.90, 136,441.65 and 61,412.30

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Solution

The fourth proportional to 90,863.90, 136,441.65 and 61,412.30 is: 92,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,863.90 : 136,441.65 = 61,412.30 : x
  2. Step 2: Convert to fraction form
    90,863.90/136,441.65 = 61,412.30/x
  3. Step 3: Cross multiply
    90,863.90x = 136,441.65 × 61,412.30
  4. Step 4: Simplify right side
    90,863.90x = 8,379,195,542.30
  5. Step 5: Solve for x
    x = 8,379,195,542.30/90,863.90
  6. Step 6: Final answer
    x = 92,216.99

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1.5x scale

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.