Home / 140,742.88-194,225.52-77,084.80

Finding the Fourth Proportional to 140,742.88, 194,225.52 and 77,084.80

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Solution

The fourth proportional to 140,742.88, 194,225.52 and 77,084.80 is: 106,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,742.88 : 194,225.52 = 77,084.80 : x
  2. Step 2: Convert to fraction form
    140,742.88/194,225.52 = 77,084.80/x
  3. Step 3: Cross multiply
    140,742.88x = 194,225.52 × 77,084.80
  4. Step 4: Simplify right side
    140,742.88x = 14,971,835,364.10
  5. Step 5: Solve for x
    x = 14,971,835,364.10/140,742.88
  6. Step 6: Final answer
    x = 106,377.21

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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.