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Finding the Fourth Proportional to 144,444.10, 216,794.15 and 85,205.70

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Solution

The fourth proportional to 144,444.10, 216,794.15 and 85,205.70 is: 127,884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,444.10 : 216,794.15 = 85,205.70 : x
  2. Step 2: Convert to fraction form
    144,444.10/216,794.15 = 85,205.70/x
  3. Step 3: Cross multiply
    144,444.10x = 216,794.15 × 85,205.70
  4. Step 4: Simplify right side
    144,444.10x = 18,472,097,306.66
  5. Step 5: Solve for x
    x = 18,472,097,306.66/144,444.10
  6. Step 6: Final answer
    x = 127,884.06

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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.