Home / 108,338.90-162,479.19-38,209.10

Finding the Fourth Proportional to 108,338.90, 162,479.19 and 38,209.10

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Solution

The fourth proportional to 108,338.90, 162,479.19 and 38,209.10 is: 57,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,338.90 : 162,479.19 = 38,209.10 : x
  2. Step 2: Convert to fraction form
    108,338.90/162,479.19 = 38,209.10/x
  3. Step 3: Cross multiply
    108,338.90x = 162,479.19 × 38,209.10
  4. Step 4: Simplify right side
    108,338.90x = 6,208,184,024.83
  5. Step 5: Solve for x
    x = 6,208,184,024.83/108,338.90
  6. Step 6: Final answer
    x = 57,303.37

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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.