Home / 140,667.90-194,121.84-77,005.80

Finding the Fourth Proportional to 140,667.90, 194,121.84 and 77,005.80

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Solution

The fourth proportional to 140,667.90, 194,121.84 and 77,005.80 is: 106,268.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,667.90 : 194,121.84 = 77,005.80 : x
  2. Step 2: Convert to fraction form
    140,667.90/194,121.84 = 77,005.80/x
  3. Step 3: Cross multiply
    140,667.90x = 194,121.84 × 77,005.80
  4. Step 4: Simplify right side
    140,667.90x = 14,948,507,586.67
  5. Step 5: Solve for x
    x = 14,948,507,586.67/140,667.90
  6. Step 6: Final answer
    x = 106,268.08

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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.