Home / 140,685.13-194,145.46-77,023.09

Finding the Fourth Proportional to 140,685.13, 194,145.46 and 77,023.09

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Solution

The fourth proportional to 140,685.13, 194,145.46 and 77,023.09 is: 106,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,685.13 : 194,145.46 = 77,023.09 : x
  2. Step 2: Convert to fraction form
    140,685.13/194,145.46 = 77,023.09/x
  3. Step 3: Cross multiply
    140,685.13x = 194,145.46 × 77,023.09
  4. Step 4: Simplify right side
    140,685.13x = 14,953,683,238.67
  5. Step 5: Solve for x
    x = 14,953,683,238.67/140,685.13
  6. Step 6: Final answer
    x = 106,291.85

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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.