Home / 149,486.20-224,117.70-90,309.40

Finding the Fourth Proportional to 149,486.20, 224,117.70 and 90,309.40

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Solution

The fourth proportional to 149,486.20, 224,117.70 and 90,309.40 is: 135,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,486.20 : 224,117.70 = 90,309.40 : x
  2. Step 2: Convert to fraction form
    149,486.20/224,117.70 = 90,309.40/x
  3. Step 3: Cross multiply
    149,486.20x = 224,117.70 × 90,309.40
  4. Step 4: Simplify right side
    149,486.20x = 20,239,935,016.38
  5. Step 5: Solve for x
    x = 20,239,935,016.38/149,486.20
  6. Step 6: Final answer
    x = 135,396.68

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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.