Home / 112,713.12-155,189.52-91,562.40

Finding the Fourth Proportional to 112,713.12, 155,189.52 and 91,562.40

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Solution

The fourth proportional to 112,713.12, 155,189.52 and 91,562.40 is: 126,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,713.12 : 155,189.52 = 91,562.40 : x
  2. Step 2: Convert to fraction form
    112,713.12/155,189.52 = 91,562.40/x
  3. Step 3: Cross multiply
    112,713.12x = 155,189.52 × 91,562.40
  4. Step 4: Simplify right side
    112,713.12x = 14,209,524,906.05
  5. Step 5: Solve for x
    x = 14,209,524,906.05/112,713.12
  6. Step 6: Final answer
    x = 126,068.06

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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.