Home / 140,699.62-194,158.02-77,025.16

Finding the Fourth Proportional to 140,699.62, 194,158.02 and 77,025.16

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Solution

The fourth proportional to 140,699.62, 194,158.02 and 77,025.16 is: 106,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,699.62 : 194,158.02 = 77,025.16 : x
  2. Step 2: Convert to fraction form
    140,699.62/194,158.02 = 77,025.16/x
  3. Step 3: Cross multiply
    140,699.62x = 194,158.02 × 77,025.16
  4. Step 4: Simplify right side
    140,699.62x = 14,955,052,555.78
  5. Step 5: Solve for x
    x = 14,955,052,555.78/140,699.62
  6. Step 6: Final answer
    x = 106,290.64

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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.