Home / 105,777.15-145,976.25-58,031.88

Finding the Fourth Proportional to 105,777.15, 145,976.25 and 58,031.88

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Solution

The fourth proportional to 105,777.15, 145,976.25 and 58,031.88 is: 80,086.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,777.15 : 145,976.25 = 58,031.88 : x
  2. Step 2: Convert to fraction form
    105,777.15/145,976.25 = 58,031.88/x
  3. Step 3: Cross multiply
    105,777.15x = 145,976.25 × 58,031.88
  4. Step 4: Simplify right side
    105,777.15x = 8,471,276,222.85
  5. Step 5: Solve for x
    x = 8,471,276,222.85/105,777.15
  6. Step 6: Final answer
    x = 80,086.07

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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.