Home / 126,315.86-189,373.17-72,947.27

Finding the Fourth Proportional to 126,315.86, 189,373.17 and 72,947.27

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Solution

The fourth proportional to 126,315.86, 189,373.17 and 72,947.27 is: 109,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,315.86 : 189,373.17 = 72,947.27 : x
  2. Step 2: Convert to fraction form
    126,315.86/189,373.17 = 72,947.27/x
  3. Step 3: Cross multiply
    126,315.86x = 189,373.17 × 72,947.27
  4. Step 4: Simplify right side
    126,315.86x = 13,814,255,762.75
  5. Step 5: Solve for x
    x = 13,814,255,762.75/126,315.86
  6. Step 6: Final answer
    x = 109,362.80

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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.