Home / 108,535.20-162,802.80-64,139.10

Finding the Fourth Proportional to 108,535.20, 162,802.80 and 64,139.10

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Solution

The fourth proportional to 108,535.20, 162,802.80 and 64,139.10 is: 96,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,535.20 : 162,802.80 = 64,139.10 : x
  2. Step 2: Convert to fraction form
    108,535.20/162,802.80 = 64,139.10/x
  3. Step 3: Cross multiply
    108,535.20x = 162,802.80 × 64,139.10
  4. Step 4: Simplify right side
    108,535.20x = 10,442,025,069.48
  5. Step 5: Solve for x
    x = 10,442,025,069.48/108,535.20
  6. Step 6: Final answer
    x = 96,208.65

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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.