Home / 126,123.60-189,089.40-63,838.80

Finding the Fourth Proportional to 126,123.60, 189,089.40 and 63,838.80

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Solution

The fourth proportional to 126,123.60, 189,089.40 and 63,838.80 is: 95,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,123.60 : 189,089.40 = 63,838.80 : x
  2. Step 2: Convert to fraction form
    126,123.60/189,089.40 = 63,838.80/x
  3. Step 3: Cross multiply
    126,123.60x = 189,089.40 × 63,838.80
  4. Step 4: Simplify right side
    126,123.60x = 12,071,240,388.72
  5. Step 5: Solve for x
    x = 12,071,240,388.72/126,123.60
  6. Step 6: Final answer
    x = 95,709.61

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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.