Home / 140,402.84-193,753.05-76,741.09

Finding the Fourth Proportional to 140,402.84, 193,753.05 and 76,741.09

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Solution

The fourth proportional to 140,402.84, 193,753.05 and 76,741.09 is: 105,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,402.84 : 193,753.05 = 76,741.09 : x
  2. Step 2: Convert to fraction form
    140,402.84/193,753.05 = 76,741.09/x
  3. Step 3: Cross multiply
    140,402.84x = 193,753.05 × 76,741.09
  4. Step 4: Simplify right side
    140,402.84x = 14,868,819,475.66
  5. Step 5: Solve for x
    x = 14,868,819,475.66/140,402.84
  6. Step 6: Final answer
    x = 105,901.13

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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.