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Finding the Fourth Proportional to 176,531, 243,618.18 and 100,048.20

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Solution

The fourth proportional to 176,531, 243,618.18 and 100,048.20 is: 138,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,531 : 243,618.18 = 100,048.20 : x
  2. Step 2: Convert to fraction form
    176,531/243,618.18 = 100,048.20/x
  3. Step 3: Cross multiply
    176,531x = 243,618.18 × 100,048.20
  4. Step 4: Simplify right side
    176,531x = 24,373,560,396.28
  5. Step 5: Solve for x
    x = 24,373,560,396.28/176,531
  6. Step 6: Final answer
    x = 138,069.58

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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.