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Finding the Fourth Proportional to 144,079.72, 216,147.59 and 55,326.70

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Solution

The fourth proportional to 144,079.72, 216,147.59 and 55,326.70 is: 83,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,079.72 : 216,147.59 = 55,326.70 : x
  2. Step 2: Convert to fraction form
    144,079.72/216,147.59 = 55,326.70/x
  3. Step 3: Cross multiply
    144,079.72x = 216,147.59 × 55,326.70
  4. Step 4: Simplify right side
    144,079.72x = 11,958,731,510.28
  5. Step 5: Solve for x
    x = 11,958,731,510.28/144,079.72
  6. Step 6: Final answer
    x = 83,000.80

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1.5x scale

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.