Home / 140,320.53-193,642.27-75,789.79

Finding the Fourth Proportional to 140,320.53, 193,642.27 and 75,789.79

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Solution

The fourth proportional to 140,320.53, 193,642.27 and 75,789.79 is: 104,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,320.53 : 193,642.27 = 75,789.79 : x
  2. Step 2: Convert to fraction form
    140,320.53/193,642.27 = 75,789.79/x
  3. Step 3: Cross multiply
    140,320.53x = 193,642.27 × 75,789.79
  4. Step 4: Simplify right side
    140,320.53x = 14,676,106,304.84
  5. Step 5: Solve for x
    x = 14,676,106,304.84/140,320.53
  6. Step 6: Final answer
    x = 104,589.87

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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.