Home / 142,959.02-197,292.39-82,540.72

Finding the Fourth Proportional to 142,959.02, 197,292.39 and 82,540.72

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Solution

The fourth proportional to 142,959.02, 197,292.39 and 82,540.72 is: 113,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,959.02 : 197,292.39 = 82,540.72 : x
  2. Step 2: Convert to fraction form
    142,959.02/197,292.39 = 82,540.72/x
  3. Step 3: Cross multiply
    142,959.02x = 197,292.39 × 82,540.72
  4. Step 4: Simplify right side
    142,959.02x = 16,284,654,934.66
  5. Step 5: Solve for x
    x = 16,284,654,934.66/142,959.02
  6. Step 6: Final answer
    x = 113,911.35

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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.