Home / 108,421.80-162,632.70-38,308.20

Finding the Fourth Proportional to 108,421.80, 162,632.70 and 38,308.20

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Solution

The fourth proportional to 108,421.80, 162,632.70 and 38,308.20 is: 57,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,421.80 : 162,632.70 = 38,308.20 : x
  2. Step 2: Convert to fraction form
    108,421.80/162,632.70 = 38,308.20/x
  3. Step 3: Cross multiply
    108,421.80x = 162,632.70 × 38,308.20
  4. Step 4: Simplify right side
    108,421.80x = 6,230,165,998.14
  5. Step 5: Solve for x
    x = 6,230,165,998.14/108,421.80
  6. Step 6: Final answer
    x = 57,462.30

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1.5x scale

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.