Home / 108,288.97-162,421.03-28,334.66

Finding the Fourth Proportional to 108,288.97, 162,421.03 and 28,334.66

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Solution

The fourth proportional to 108,288.97, 162,421.03 and 28,334.66 is: 42,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,288.97 : 162,421.03 = 28,334.66 : x
  2. Step 2: Convert to fraction form
    108,288.97/162,421.03 = 28,334.66/x
  3. Step 3: Cross multiply
    108,288.97x = 162,421.03 × 28,334.66
  4. Step 4: Simplify right side
    108,288.97x = 4,602,144,798.83
  5. Step 5: Solve for x
    x = 4,602,144,798.83/108,288.97
  6. Step 6: Final answer
    x = 42,498.74

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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.