Home / 135,433.30-202,955.55-99,615.10

Finding the Fourth Proportional to 135,433.30, 202,955.55 and 99,615.10

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Solution

The fourth proportional to 135,433.30, 202,955.55 and 99,615.10 is: 149,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,433.30 : 202,955.55 = 99,615.10 : x
  2. Step 2: Convert to fraction form
    135,433.30/202,955.55 = 99,615.10/x
  3. Step 3: Cross multiply
    135,433.30x = 202,955.55 × 99,615.10
  4. Step 4: Simplify right side
    135,433.30x = 20,217,437,408.81
  5. Step 5: Solve for x
    x = 20,217,437,408.81/135,433.30
  6. Step 6: Final answer
    x = 149,279.66

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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.