Home / 149,482.20-224,111.70-90,305.40

Finding the Fourth Proportional to 149,482.20, 224,111.70 and 90,305.40

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Solution

The fourth proportional to 149,482.20, 224,111.70 and 90,305.40 is: 135,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,482.20 : 224,111.70 = 90,305.40 : x
  2. Step 2: Convert to fraction form
    149,482.20/224,111.70 = 90,305.40/x
  3. Step 3: Cross multiply
    149,482.20x = 224,111.70 × 90,305.40
  4. Step 4: Simplify right side
    149,482.20x = 20,238,496,713.18
  5. Step 5: Solve for x
    x = 20,238,496,713.18/149,482.20
  6. Step 6: Final answer
    x = 135,390.68

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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.