Home / 101,535.46-140,192.85-81,502.54

Finding the Fourth Proportional to 101,535.46, 140,192.85 and 81,502.54

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Solution

The fourth proportional to 101,535.46, 140,192.85 and 81,502.54 is: 112,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,535.46 : 140,192.85 = 81,502.54 : x
  2. Step 2: Convert to fraction form
    101,535.46/140,192.85 = 81,502.54/x
  3. Step 3: Cross multiply
    101,535.46x = 140,192.85 × 81,502.54
  4. Step 4: Simplify right side
    101,535.46x = 11,426,073,364.84
  5. Step 5: Solve for x
    x = 11,426,073,364.84/101,535.46
  6. Step 6: Final answer
    x = 112,532.84

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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.