Home / 112,805.43-155,666.92-67,456.68

Finding the Fourth Proportional to 112,805.43, 155,666.92 and 67,456.68

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Solution

The fourth proportional to 112,805.43, 155,666.92 and 67,456.68 is: 93,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,805.43 : 155,666.92 = 67,456.68 : x
  2. Step 2: Convert to fraction form
    112,805.43/155,666.92 = 67,456.68/x
  3. Step 3: Cross multiply
    112,805.43x = 155,666.92 × 67,456.68
  4. Step 4: Simplify right side
    112,805.43x = 10,500,773,609.03
  5. Step 5: Solve for x
    x = 10,500,773,609.03/112,805.43
  6. Step 6: Final answer
    x = 93,087.48

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1.5x scale

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.