Home / 112,581.12-169,065.07-99,959.30

Finding the Fourth Proportional to 112,581.12, 169,065.07 and 99,959.30

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Solution

The fourth proportional to 112,581.12, 169,065.07 and 99,959.30 is: 150,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,581.12 : 169,065.07 = 99,959.30 : x
  2. Step 2: Convert to fraction form
    112,581.12/169,065.07 = 99,959.30/x
  3. Step 3: Cross multiply
    112,581.12x = 169,065.07 × 99,959.30
  4. Step 4: Simplify right side
    112,581.12x = 16,899,626,051.65
  5. Step 5: Solve for x
    x = 16,899,626,051.65/112,581.12
  6. Step 6: Final answer
    x = 150,110.66

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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.