Home / 175,621.20-242,341.92-103,988.40

Finding the Fourth Proportional to 175,621.20, 242,341.92 and 103,988.40

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Solution

The fourth proportional to 175,621.20, 242,341.92 and 103,988.40 is: 143,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,621.20 : 242,341.92 = 103,988.40 : x
  2. Step 2: Convert to fraction form
    175,621.20/242,341.92 = 103,988.40/x
  3. Step 3: Cross multiply
    175,621.20x = 242,341.92 × 103,988.40
  4. Step 4: Simplify right side
    175,621.20x = 25,200,748,513.73
  5. Step 5: Solve for x
    x = 25,200,748,513.73/175,621.20
  6. Step 6: Final answer
    x = 143,494.91

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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.