Home / 126,545.02-189,836.96-42,289.62

Finding the Fourth Proportional to 126,545.02, 189,836.96 and 42,289.62

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Solution

The fourth proportional to 126,545.02, 189,836.96 and 42,289.62 is: 63,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,545.02 : 189,836.96 = 42,289.62 : x
  2. Step 2: Convert to fraction form
    126,545.02/189,836.96 = 42,289.62/x
  3. Step 3: Cross multiply
    126,545.02x = 189,836.96 × 42,289.62
  4. Step 4: Simplify right side
    126,545.02x = 8,028,132,900.36
  5. Step 5: Solve for x
    x = 8,028,132,900.36/126,545.02
  6. Step 6: Final answer
    x = 63,440.92

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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.