Home / 105,742.17-145,924.92-57,995.86

Finding the Fourth Proportional to 105,742.17, 145,924.92 and 57,995.86

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Solution

The fourth proportional to 105,742.17, 145,924.92 and 57,995.86 is: 80,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,742.17 : 145,924.92 = 57,995.86 : x
  2. Step 2: Convert to fraction form
    105,742.17/145,924.92 = 57,995.86/x
  3. Step 3: Cross multiply
    105,742.17x = 145,924.92 × 57,995.86
  4. Step 4: Simplify right side
    105,742.17x = 8,463,041,230.83
  5. Step 5: Solve for x
    x = 8,463,041,230.83/105,742.17
  6. Step 6: Final answer
    x = 80,034.68

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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.