Home / 90,765.60-136,148.40-44,109.60

Finding the Fourth Proportional to 90,765.60, 136,148.40 and 44,109.60

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Solution

The fourth proportional to 90,765.60, 136,148.40 and 44,109.60 is: 66,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,765.60 : 136,148.40 = 44,109.60 : x
  2. Step 2: Convert to fraction form
    90,765.60/136,148.40 = 44,109.60/x
  3. Step 3: Cross multiply
    90,765.60x = 136,148.40 × 44,109.60
  4. Step 4: Simplify right side
    90,765.60x = 6,005,451,464.64
  5. Step 5: Solve for x
    x = 6,005,451,464.64/90,765.60
  6. Step 6: Final answer
    x = 66,164.40

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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.