Home / 142,433.64-196,766.82-112,418.28

Finding the Fourth Proportional to 142,433.64, 196,766.82 and 112,418.28

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Solution

The fourth proportional to 142,433.64, 196,766.82 and 112,418.28 is: 155,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,433.64 : 196,766.82 = 112,418.28 : x
  2. Step 2: Convert to fraction form
    142,433.64/196,766.82 = 112,418.28/x
  3. Step 3: Cross multiply
    142,433.64x = 196,766.82 × 112,418.28
  4. Step 4: Simplify right side
    142,433.64x = 22,120,187,465.47
  5. Step 5: Solve for x
    x = 22,120,187,465.47/142,433.64
  6. Step 6: Final answer
    x = 155,301.71

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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.