Home / 144,043.41-198,779.78-80,381.55

Finding the Fourth Proportional to 144,043.41, 198,779.78 and 80,381.55

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Solution

The fourth proportional to 144,043.41, 198,779.78 and 80,381.55 is: 110,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,043.41 : 198,779.78 = 80,381.55 : x
  2. Step 2: Convert to fraction form
    144,043.41/198,779.78 = 80,381.55/x
  3. Step 3: Cross multiply
    144,043.41x = 198,779.78 × 80,381.55
  4. Step 4: Simplify right side
    144,043.41x = 15,978,226,423.15
  5. Step 5: Solve for x
    x = 15,978,226,423.15/144,043.41
  6. Step 6: Final answer
    x = 110,926.47

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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.