Home / 140,729.40-194,200.74-77,066.10

Finding the Fourth Proportional to 140,729.40, 194,200.74 and 77,066.10

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Solution

The fourth proportional to 140,729.40, 194,200.74 and 77,066.10 is: 106,348.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,729.40 : 194,200.74 = 77,066.10 : x
  2. Step 2: Convert to fraction form
    140,729.40/194,200.74 = 77,066.10/x
  3. Step 3: Cross multiply
    140,729.40x = 194,200.74 × 77,066.10
  4. Step 4: Simplify right side
    140,729.40x = 14,966,293,648.91
  5. Step 5: Solve for x
    x = 14,966,293,648.91/140,729.40
  6. Step 6: Final answer
    x = 106,348.02

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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.