Home / 135,355.03-202,962.47-72,158.18

Finding the Fourth Proportional to 135,355.03, 202,962.47 and 72,158.18

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Solution

The fourth proportional to 135,355.03, 202,962.47 and 72,158.18 is: 108,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,355.03 : 202,962.47 = 72,158.18 : x
  2. Step 2: Convert to fraction form
    135,355.03/202,962.47 = 72,158.18/x
  3. Step 3: Cross multiply
    135,355.03x = 202,962.47 × 72,158.18
  4. Step 4: Simplify right side
    135,355.03x = 14,645,401,067.90
  5. Step 5: Solve for x
    x = 14,645,401,067.90/135,355.03
  6. Step 6: Final answer
    x = 108,199.90

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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.