Home / 131,359.14-181,275.81-74,770.50

Finding the Fourth Proportional to 131,359.14, 181,275.81 and 74,770.50

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Solution

The fourth proportional to 131,359.14, 181,275.81 and 74,770.50 is: 103,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,359.14 : 181,275.81 = 74,770.50 : x
  2. Step 2: Convert to fraction form
    131,359.14/181,275.81 = 74,770.50/x
  3. Step 3: Cross multiply
    131,359.14x = 181,275.81 × 74,770.50
  4. Step 4: Simplify right side
    131,359.14x = 13,554,082,951.61
  5. Step 5: Solve for x
    x = 13,554,082,951.61/131,359.14
  6. Step 6: Final answer
    x = 103,183.40

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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.