Home / 102,779.25-154,188.72-36,221.55

Finding the Fourth Proportional to 102,779.25, 154,188.72 and 36,221.55

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Solution

The fourth proportional to 102,779.25, 154,188.72 and 36,221.55 is: 54,339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,779.25 : 154,188.72 = 36,221.55 : x
  2. Step 2: Convert to fraction form
    102,779.25/154,188.72 = 36,221.55/x
  3. Step 3: Cross multiply
    102,779.25x = 154,188.72 × 36,221.55
  4. Step 4: Simplify right side
    102,779.25x = 5,584,954,430.92
  5. Step 5: Solve for x
    x = 5,584,954,430.92/102,779.25
  6. Step 6: Final answer
    x = 54,339.32

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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.