Home / 140,102.20-193,282.54-91,715.95

Finding the Fourth Proportional to 140,102.20, 193,282.54 and 91,715.95

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Solution

The fourth proportional to 140,102.20, 193,282.54 and 91,715.95 is: 126,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,102.20 : 193,282.54 = 91,715.95 : x
  2. Step 2: Convert to fraction form
    140,102.20/193,282.54 = 91,715.95/x
  3. Step 3: Cross multiply
    140,102.20x = 193,282.54 × 91,715.95
  4. Step 4: Simplify right side
    140,102.20x = 17,727,091,774.51
  5. Step 5: Solve for x
    x = 17,727,091,774.51/140,102.20
  6. Step 6: Final answer
    x = 126,529.72

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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.