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Finding the Fourth Proportional to 144,482.60, 216,723.90 and 100,159.40

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Solution

The fourth proportional to 144,482.60, 216,723.90 and 100,159.40 is: 150,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,482.60 : 216,723.90 = 100,159.40 : x
  2. Step 2: Convert to fraction form
    144,482.60/216,723.90 = 100,159.40/x
  3. Step 3: Cross multiply
    144,482.60x = 216,723.90 × 100,159.40
  4. Step 4: Simplify right side
    144,482.60x = 21,706,935,789.66
  5. Step 5: Solve for x
    x = 21,706,935,789.66/144,482.60
  6. Step 6: Final answer
    x = 150,239.10

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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.