Home / 131,578.08-181,577.61-71,148.57

Finding the Fourth Proportional to 131,578.08, 181,577.61 and 71,148.57

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Solution

The fourth proportional to 131,578.08, 181,577.61 and 71,148.57 is: 98,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578.08 : 181,577.61 = 71,148.57 : x
  2. Step 2: Convert to fraction form
    131,578.08/181,577.61 = 71,148.57/x
  3. Step 3: Cross multiply
    131,578.08x = 181,577.61 × 71,148.57
  4. Step 4: Simplify right side
    131,578.08x = 12,918,987,295.52
  5. Step 5: Solve for x
    x = 12,918,987,295.52/131,578.08
  6. Step 6: Final answer
    x = 98,184.95

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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.