Home / 123,329.43-170,193.98-66,740.81

Finding the Fourth Proportional to 123,329.43, 170,193.98 and 66,740.81

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Solution

The fourth proportional to 123,329.43, 170,193.98 and 66,740.81 is: 92,101.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,329.43 : 170,193.98 = 66,740.81 : x
  2. Step 2: Convert to fraction form
    123,329.43/170,193.98 = 66,740.81/x
  3. Step 3: Cross multiply
    123,329.43x = 170,193.98 × 66,740.81
  4. Step 4: Simplify right side
    123,329.43x = 11,358,883,398.21
  5. Step 5: Solve for x
    x = 11,358,883,398.21/123,329.43
  6. Step 6: Final answer
    x = 92,101.97

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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.