Home / 175,850.78-242,668.42-100,399.28

Finding the Fourth Proportional to 175,850.78, 242,668.42 and 100,399.28

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Solution

The fourth proportional to 175,850.78, 242,668.42 and 100,399.28 is: 138,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,850.78 : 242,668.42 = 100,399.28 : x
  2. Step 2: Convert to fraction form
    175,850.78/242,668.42 = 100,399.28/x
  3. Step 3: Cross multiply
    175,850.78x = 242,668.42 × 100,399.28
  4. Step 4: Simplify right side
    175,850.78x = 24,363,734,646.74
  5. Step 5: Solve for x
    x = 24,363,734,646.74/175,850.78
  6. Step 6: Final answer
    x = 138,547.78

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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.