Home / 135,023.40-202,535.10-108,779.40

Finding the Fourth Proportional to 135,023.40, 202,535.10 and 108,779.40

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Solution

The fourth proportional to 135,023.40, 202,535.10 and 108,779.40 is: 163,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,023.40 : 202,535.10 = 108,779.40 : x
  2. Step 2: Convert to fraction form
    135,023.40/202,535.10 = 108,779.40/x
  3. Step 3: Cross multiply
    135,023.40x = 202,535.10 × 108,779.40
  4. Step 4: Simplify right side
    135,023.40x = 22,031,646,656.94
  5. Step 5: Solve for x
    x = 22,031,646,656.94/135,023.40
  6. Step 6: Final answer
    x = 163,169.10

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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.