Home / 140,929.12-194,482.24-77,265.60

Finding the Fourth Proportional to 140,929.12, 194,482.24 and 77,265.60

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Solution

The fourth proportional to 140,929.12, 194,482.24 and 77,265.60 is: 106,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,929.12 : 194,482.24 = 77,265.60 : x
  2. Step 2: Convert to fraction form
    140,929.12/194,482.24 = 77,265.60/x
  3. Step 3: Cross multiply
    140,929.12x = 194,482.24 × 77,265.60
  4. Step 4: Simplify right side
    140,929.12x = 15,026,786,962.94
  5. Step 5: Solve for x
    x = 15,026,786,962.94/140,929.12
  6. Step 6: Final answer
    x = 106,626.56

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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.