Home / 131,890.95-181,909.05-113,525.32

Finding the Fourth Proportional to 131,890.95, 181,909.05 and 113,525.32

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Solution

The fourth proportional to 131,890.95, 181,909.05 and 113,525.32 is: 156,578.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,890.95 : 181,909.05 = 113,525.32 : x
  2. Step 2: Convert to fraction form
    131,890.95/181,909.05 = 113,525.32/x
  3. Step 3: Cross multiply
    131,890.95x = 181,909.05 × 113,525.32
  4. Step 4: Simplify right side
    131,890.95x = 20,651,283,112.15
  5. Step 5: Solve for x
    x = 20,651,283,112.15/131,890.95
  6. Step 6: Final answer
    x = 156,578.47

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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.