Home / 162,619.54-224,421.92-100,543.57

Finding the Fourth Proportional to 162,619.54, 224,421.92 and 100,543.57

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Solution

The fourth proportional to 162,619.54, 224,421.92 and 100,543.57 is: 138,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,619.54 : 224,421.92 = 100,543.57 : x
  2. Step 2: Convert to fraction form
    162,619.54/224,421.92 = 100,543.57/x
  3. Step 3: Cross multiply
    162,619.54x = 224,421.92 × 100,543.57
  4. Step 4: Simplify right side
    162,619.54x = 22,564,181,023.05
  5. Step 5: Solve for x
    x = 22,564,181,023.05/162,619.54
  6. Step 6: Final answer
    x = 138,754.43

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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.