Home / 142,521.75-196,687.31-85,936.77

Finding the Fourth Proportional to 142,521.75, 196,687.31 and 85,936.77

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Solution

The fourth proportional to 142,521.75, 196,687.31 and 85,936.77 is: 118,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,521.75 : 196,687.31 = 85,936.77 : x
  2. Step 2: Convert to fraction form
    142,521.75/196,687.31 = 85,936.77/x
  3. Step 3: Cross multiply
    142,521.75x = 196,687.31 × 85,936.77
  4. Step 4: Simplify right side
    142,521.75x = 16,902,671,691.70
  5. Step 5: Solve for x
    x = 16,902,671,691.70/142,521.75
  6. Step 6: Final answer
    x = 118,597.14

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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.