Home / 224,975.12-310,543.85-129,519.86

Finding the Fourth Proportional to 224,975.12, 310,543.85 and 129,519.86

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Solution

The fourth proportional to 224,975.12, 310,543.85 and 129,519.86 is: 178,782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,975.12 : 310,543.85 = 129,519.86 : x
  2. Step 2: Convert to fraction form
    224,975.12/310,543.85 = 129,519.86/x
  3. Step 3: Cross multiply
    224,975.12x = 310,543.85 × 129,519.86
  4. Step 4: Simplify right side
    224,975.12x = 40,221,593,775.54
  5. Step 5: Solve for x
    x = 40,221,593,775.54/224,975.12
  6. Step 6: Final answer
    x = 178,782.41

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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.