Home / 108,873.72-163,312.20-38,751.21

Finding the Fourth Proportional to 108,873.72, 163,312.20 and 38,751.21

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Solution

The fourth proportional to 108,873.72, 163,312.20 and 38,751.21 is: 58,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,873.72 : 163,312.20 = 38,751.21 : x
  2. Step 2: Convert to fraction form
    108,873.72/163,312.20 = 38,751.21/x
  3. Step 3: Cross multiply
    108,873.72x = 163,312.20 × 38,751.21
  4. Step 4: Simplify right side
    108,873.72x = 6,328,545,357.76
  5. Step 5: Solve for x
    x = 6,328,545,357.76/108,873.72
  6. Step 6: Final answer
    x = 58,127.39

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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.