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Finding the Fourth Proportional to 126,487.84, 189,859.80 and 63,353.20

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Solution

The fourth proportional to 126,487.84, 189,859.80 and 63,353.20 is: 95,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,487.84 : 189,859.80 = 63,353.20 : x
  2. Step 2: Convert to fraction form
    126,487.84/189,859.80 = 63,353.20/x
  3. Step 3: Cross multiply
    126,487.84x = 189,859.80 × 63,353.20
  4. Step 4: Simplify right side
    126,487.84x = 12,028,225,881.36
  5. Step 5: Solve for x
    x = 12,028,225,881.36/126,487.84
  6. Step 6: Final answer
    x = 95,093.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.