Home / 131,476.50-181,437.57-74,920.68

Finding the Fourth Proportional to 131,476.50, 181,437.57 and 74,920.68

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Solution

The fourth proportional to 131,476.50, 181,437.57 and 74,920.68 is: 103,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,476.50 : 181,437.57 = 74,920.68 : x
  2. Step 2: Convert to fraction form
    131,476.50/181,437.57 = 74,920.68/x
  3. Step 3: Cross multiply
    131,476.50x = 181,437.57 × 74,920.68
  4. Step 4: Simplify right side
    131,476.50x = 13,593,426,121.95
  5. Step 5: Solve for x
    x = 13,593,426,121.95/131,476.50
  6. Step 6: Final answer
    x = 103,390.54

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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.