Home / 108,998.23-163,430.43-42,360.55

Finding the Fourth Proportional to 108,998.23, 163,430.43 and 42,360.55

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Solution

The fourth proportional to 108,998.23, 163,430.43 and 42,360.55 is: 63,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,998.23 : 163,430.43 = 42,360.55 : x
  2. Step 2: Convert to fraction form
    108,998.23/163,430.43 = 42,360.55/x
  3. Step 3: Cross multiply
    108,998.23x = 163,430.43 × 42,360.55
  4. Step 4: Simplify right side
    108,998.23x = 6,923,002,901.54
  5. Step 5: Solve for x
    x = 6,923,002,901.54/108,998.23
  6. Step 6: Final answer
    x = 63,514.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.