Home / 142,043.72-196,044.18-85,460.36

Finding the Fourth Proportional to 142,043.72, 196,044.18 and 85,460.36

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Solution

The fourth proportional to 142,043.72, 196,044.18 and 85,460.36 is: 117,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,043.72 : 196,044.18 = 85,460.36 : x
  2. Step 2: Convert to fraction form
    142,043.72/196,044.18 = 85,460.36/x
  3. Step 3: Cross multiply
    142,043.72x = 196,044.18 × 85,460.36
  4. Step 4: Simplify right side
    142,043.72x = 16,754,006,198.70
  5. Step 5: Solve for x
    x = 16,754,006,198.70/142,043.72
  6. Step 6: Final answer
    x = 117,949.64

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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.