Home / 105,655.92-145,786.68-60,313.20

Finding the Fourth Proportional to 105,655.92, 145,786.68 and 60,313.20

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Solution

The fourth proportional to 105,655.92, 145,786.68 and 60,313.20 is: 83,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,655.92 : 145,786.68 = 60,313.20 : x
  2. Step 2: Convert to fraction form
    105,655.92/145,786.68 = 60,313.20/x
  3. Step 3: Cross multiply
    105,655.92x = 145,786.68 × 60,313.20
  4. Step 4: Simplify right side
    105,655.92x = 8,792,861,188.18
  5. Step 5: Solve for x
    x = 8,792,861,188.18/105,655.92
  6. Step 6: Final answer
    x = 83,221.66

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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.