Home / 135,353.15-202,959.65-72,156.30

Finding the Fourth Proportional to 135,353.15, 202,959.65 and 72,156.30

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Solution

The fourth proportional to 135,353.15, 202,959.65 and 72,156.30 is: 108,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,353.15 : 202,959.65 = 72,156.30 : x
  2. Step 2: Convert to fraction form
    135,353.15/202,959.65 = 72,156.30/x
  3. Step 3: Cross multiply
    135,353.15x = 202,959.65 × 72,156.30
  4. Step 4: Simplify right side
    135,353.15x = 14,644,817,573.69
  5. Step 5: Solve for x
    x = 14,644,817,573.69/135,353.15
  6. Step 6: Final answer
    x = 108,197.09

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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.