Home / 144,306.40-199,142.48-80,644.16

Finding the Fourth Proportional to 144,306.40, 199,142.48 and 80,644.16

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Solution

The fourth proportional to 144,306.40, 199,142.48 and 80,644.16 is: 111,288.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,306.40 : 199,142.48 = 80,644.16 : x
  2. Step 2: Convert to fraction form
    144,306.40/199,142.48 = 80,644.16/x
  3. Step 3: Cross multiply
    144,306.40x = 199,142.48 × 80,644.16
  4. Step 4: Simplify right side
    144,306.40x = 16,059,678,019.92
  5. Step 5: Solve for x
    x = 16,059,678,019.92/144,306.40
  6. Step 6: Final answer
    x = 111,288.74

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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.