Home / 140,241.83-210,439.28-81,192.83

Finding the Fourth Proportional to 140,241.83, 210,439.28 and 81,192.83

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Solution

The fourth proportional to 140,241.83, 210,439.28 and 81,192.83 is: 121,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,241.83 : 210,439.28 = 81,192.83 : x
  2. Step 2: Convert to fraction form
    140,241.83/210,439.28 = 81,192.83/x
  3. Step 3: Cross multiply
    140,241.83x = 210,439.28 × 81,192.83
  4. Step 4: Simplify right side
    140,241.83x = 17,086,160,686.36
  5. Step 5: Solve for x
    x = 17,086,160,686.36/140,241.83
  6. Step 6: Final answer
    x = 121,833.55

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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.