Home / 140,830.16-194,348.07-77,164.16

Finding the Fourth Proportional to 140,830.16, 194,348.07 and 77,164.16

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Solution

The fourth proportional to 140,830.16, 194,348.07 and 77,164.16 is: 106,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,830.16 : 194,348.07 = 77,164.16 : x
  2. Step 2: Convert to fraction form
    140,830.16/194,348.07 = 77,164.16/x
  3. Step 3: Cross multiply
    140,830.16x = 194,348.07 × 77,164.16
  4. Step 4: Simplify right side
    140,830.16x = 14,996,704,597.43
  5. Step 5: Solve for x
    x = 14,996,704,597.43/140,830.16
  6. Step 6: Final answer
    x = 106,487.88

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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.