Home / 149,899.20-224,860.32-66,801.60

Finding the Fourth Proportional to 149,899.20, 224,860.32 and 66,801.60

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Solution

The fourth proportional to 149,899.20, 224,860.32 and 66,801.60 is: 100,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,899.20 : 224,860.32 = 66,801.60 : x
  2. Step 2: Convert to fraction form
    149,899.20/224,860.32 = 66,801.60/x
  3. Step 3: Cross multiply
    149,899.20x = 224,860.32 × 66,801.60
  4. Step 4: Simplify right side
    149,899.20x = 15,021,029,152.51
  5. Step 5: Solve for x
    x = 15,021,029,152.51/149,899.20
  6. Step 6: Final answer
    x = 100,207.53

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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.