Home / 175,651.12-242,335.56-100,155.88

Finding the Fourth Proportional to 175,651.12, 242,335.56 and 100,155.88

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Solution

The fourth proportional to 175,651.12, 242,335.56 and 100,155.88 is: 138,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,651.12 : 242,335.56 = 100,155.88 : x
  2. Step 2: Convert to fraction form
    175,651.12/242,335.56 = 100,155.88/x
  3. Step 3: Cross multiply
    175,651.12x = 242,335.56 × 100,155.88
  4. Step 4: Simplify right side
    175,651.12x = 24,271,331,267.09
  5. Step 5: Solve for x
    x = 24,271,331,267.09/175,651.12
  6. Step 6: Final answer
    x = 138,179.20

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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.