Home / 131,718.69-181,726.74-74,350.85

Finding the Fourth Proportional to 131,718.69, 181,726.74 and 74,350.85

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Solution

The fourth proportional to 131,718.69, 181,726.74 and 74,350.85 is: 102,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,718.69 : 181,726.74 = 74,350.85 : x
  2. Step 2: Convert to fraction form
    131,718.69/181,726.74 = 74,350.85/x
  3. Step 3: Cross multiply
    131,718.69x = 181,726.74 × 74,350.85
  4. Step 4: Simplify right side
    131,718.69x = 13,511,536,678.10
  5. Step 5: Solve for x
    x = 13,511,536,678.10/131,718.69
  6. Step 6: Final answer
    x = 102,578.74

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1.5x scale

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.