Home / 140,133.60-193,380.72-76,472.16

Finding the Fourth Proportional to 140,133.60, 193,380.72 and 76,472.16

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Solution

The fourth proportional to 140,133.60, 193,380.72 and 76,472.16 is: 105,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,133.60 : 193,380.72 = 76,472.16 : x
  2. Step 2: Convert to fraction form
    140,133.60/193,380.72 = 76,472.16/x
  3. Step 3: Cross multiply
    140,133.60x = 193,380.72 × 76,472.16
  4. Step 4: Simplify right side
    140,133.60x = 14,788,241,360.76
  5. Step 5: Solve for x
    x = 14,788,241,360.76/140,133.60
  6. Step 6: Final answer
    x = 105,529.59

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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.