Home / 144,444.10-199,332.70-80,781.90

Finding the Fourth Proportional to 144,444.10, 199,332.70 and 80,781.90

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Solution

The fourth proportional to 144,444.10, 199,332.70 and 80,781.90 is: 111,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,444.10 : 199,332.70 = 80,781.90 : x
  2. Step 2: Convert to fraction form
    144,444.10/199,332.70 = 80,781.90/x
  3. Step 3: Cross multiply
    144,444.10x = 199,332.70 × 80,781.90
  4. Step 4: Simplify right side
    144,444.10x = 16,102,474,238.13
  5. Step 5: Solve for x
    x = 16,102,474,238.13/144,444.10
  6. Step 6: Final answer
    x = 111,478.93

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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.