Home / 105,741.86-145,910.30-60,422.76

Finding the Fourth Proportional to 105,741.86, 145,910.30 and 60,422.76

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Solution

The fourth proportional to 105,741.86, 145,910.30 and 60,422.76 is: 83,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,741.86 : 145,910.30 = 60,422.76 : x
  2. Step 2: Convert to fraction form
    105,741.86/145,910.30 = 60,422.76/x
  3. Step 3: Cross multiply
    105,741.86x = 145,910.30 × 60,422.76
  4. Step 4: Simplify right side
    105,741.86x = 8,816,303,038.43
  5. Step 5: Solve for x
    x = 8,816,303,038.43/105,741.86
  6. Step 6: Final answer
    x = 83,375.71

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1.5x scale

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.