Home / 112,581.80-169,065.90-99,960.08

Finding the Fourth Proportional to 112,581.80, 169,065.90 and 99,960.08

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Solution

The fourth proportional to 112,581.80, 169,065.90 and 99,960.08 is: 150,111.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,581.80 : 169,065.90 = 99,960.08 : x
  2. Step 2: Convert to fraction form
    112,581.80/169,065.90 = 99,960.08/x
  3. Step 3: Cross multiply
    112,581.80x = 169,065.90 × 99,960.08
  4. Step 4: Simplify right side
    112,581.80x = 16,899,840,889.27
  5. Step 5: Solve for x
    x = 16,899,840,889.27/112,581.80
  6. Step 6: Final answer
    x = 150,111.66

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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.