Home / 140,158.20-210,237.30-80,963.40

Finding the Fourth Proportional to 140,158.20, 210,237.30 and 80,963.40

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Solution

The fourth proportional to 140,158.20, 210,237.30 and 80,963.40 is: 121,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,158.20 : 210,237.30 = 80,963.40 : x
  2. Step 2: Convert to fraction form
    140,158.20/210,237.30 = 80,963.40/x
  3. Step 3: Cross multiply
    140,158.20x = 210,237.30 × 80,963.40
  4. Step 4: Simplify right side
    140,158.20x = 17,021,526,614.82
  5. Step 5: Solve for x
    x = 17,021,526,614.82/140,158.20
  6. Step 6: Final answer
    x = 121,445.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.