Home / 149,981.40-224,719.38-90,635.94

Finding the Fourth Proportional to 149,981.40, 224,719.38 and 90,635.94

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Solution

The fourth proportional to 149,981.40, 224,719.38 and 90,635.94 is: 135,801.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,981.40 : 224,719.38 = 90,635.94 : x
  2. Step 2: Convert to fraction form
    149,981.40/224,719.38 = 90,635.94/x
  3. Step 3: Cross multiply
    149,981.40x = 224,719.38 × 90,635.94
  4. Step 4: Simplify right side
    149,981.40x = 20,367,652,242.52
  5. Step 5: Solve for x
    x = 20,367,652,242.52/149,981.40
  6. Step 6: Final answer
    x = 135,801.19

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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.