Home / 108,135.12-162,211.20-38,030.16

Finding the Fourth Proportional to 108,135.12, 162,211.20 and 38,030.16

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Solution

The fourth proportional to 108,135.12, 162,211.20 and 38,030.16 is: 57,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,135.12 : 162,211.20 = 38,030.16 : x
  2. Step 2: Convert to fraction form
    108,135.12/162,211.20 = 38,030.16/x
  3. Step 3: Cross multiply
    108,135.12x = 162,211.20 × 38,030.16
  4. Step 4: Simplify right side
    108,135.12x = 6,168,917,889.79
  5. Step 5: Solve for x
    x = 6,168,917,889.79/108,135.12
  6. Step 6: Final answer
    x = 57,048.24

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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.