Home / 112,956.12-169,398.78-40,899.90

Finding the Fourth Proportional to 112,956.12, 169,398.78 and 40,899.90

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Solution

The fourth proportional to 112,956.12, 169,398.78 and 40,899.90 is: 61,337.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,956.12 : 169,398.78 = 40,899.90 : x
  2. Step 2: Convert to fraction form
    112,956.12/169,398.78 = 40,899.90/x
  3. Step 3: Cross multiply
    112,956.12x = 169,398.78 × 40,899.90
  4. Step 4: Simplify right side
    112,956.12x = 6,928,393,162.12
  5. Step 5: Solve for x
    x = 6,928,393,162.12/112,956.12
  6. Step 6: Final answer
    x = 61,337.03

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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.