Home / 175,720.72-242,511.96-100,280.56

Finding the Fourth Proportional to 175,720.72, 242,511.96 and 100,280.56

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Solution

The fourth proportional to 175,720.72, 242,511.96 and 100,280.56 is: 138,397.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,720.72 : 242,511.96 = 100,280.56 : x
  2. Step 2: Convert to fraction form
    175,720.72/242,511.96 = 100,280.56/x
  3. Step 3: Cross multiply
    175,720.72x = 242,511.96 × 100,280.56
  4. Step 4: Simplify right side
    175,720.72x = 24,319,235,155.50
  5. Step 5: Solve for x
    x = 24,319,235,155.50/175,720.72
  6. Step 6: Final answer
    x = 138,397.08

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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.