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Finding the Fourth Proportional to 144,317.58, 216,126.45 and 99,819.42

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Solution

The fourth proportional to 144,317.58, 216,126.45 and 99,819.42 is: 149,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,317.58 : 216,126.45 = 99,819.42 : x
  2. Step 2: Convert to fraction form
    144,317.58/216,126.45 = 99,819.42/x
  3. Step 3: Cross multiply
    144,317.58x = 216,126.45 × 99,819.42
  4. Step 4: Simplify right side
    144,317.58x = 21,573,616,885.66
  5. Step 5: Solve for x
    x = 21,573,616,885.66/144,317.58
  6. Step 6: Final answer
    x = 149,487.10

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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.