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Finding the Fourth Proportional to 90,789.60, 136,184.40 and 44,133.60

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Solution

The fourth proportional to 90,789.60, 136,184.40 and 44,133.60 is: 66,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,789.60 : 136,184.40 = 44,133.60 : x
  2. Step 2: Convert to fraction form
    90,789.60/136,184.40 = 44,133.60/x
  3. Step 3: Cross multiply
    90,789.60x = 136,184.40 × 44,133.60
  4. Step 4: Simplify right side
    90,789.60x = 6,010,307,835.84
  5. Step 5: Solve for x
    x = 6,010,307,835.84/90,789.60
  6. Step 6: Final answer
    x = 66,200.40

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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.