Home / 90,832.30-136,248.45-68,713.90

Finding the Fourth Proportional to 90,832.30, 136,248.45 and 68,713.90

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Solution

The fourth proportional to 90,832.30, 136,248.45 and 68,713.90 is: 103,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,832.30 : 136,248.45 = 68,713.90 : x
  2. Step 2: Convert to fraction form
    90,832.30/136,248.45 = 68,713.90/x
  3. Step 3: Cross multiply
    90,832.30x = 136,248.45 × 68,713.90
  4. Step 4: Simplify right side
    90,832.30x = 9,362,162,368.46
  5. Step 5: Solve for x
    x = 9,362,162,368.46/90,832.30
  6. Step 6: Final answer
    x = 103,070.85

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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.