Home / 140,940.02-194,495.82-77,277.66

Finding the Fourth Proportional to 140,940.02, 194,495.82 and 77,277.66

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Solution

The fourth proportional to 140,940.02, 194,495.82 and 77,277.66 is: 106,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,940.02 : 194,495.82 = 77,277.66 : x
  2. Step 2: Convert to fraction form
    140,940.02/194,495.82 = 77,277.66/x
  3. Step 3: Cross multiply
    140,940.02x = 194,495.82 × 77,277.66
  4. Step 4: Simplify right side
    140,940.02x = 15,030,181,849.38
  5. Step 5: Solve for x
    x = 15,030,181,849.38/140,940.02
  6. Step 6: Final answer
    x = 106,642.40

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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.