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Finding the Fourth Proportional to 90,736.20, 136,104.30 and 90,736.20

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Solution

The fourth proportional to 90,736.20, 136,104.30 and 90,736.20 is: 136,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,736.20 : 136,104.30 = 90,736.20 : x
  2. Step 2: Convert to fraction form
    90,736.20/136,104.30 = 90,736.20/x
  3. Step 3: Cross multiply
    90,736.20x = 136,104.30 × 90,736.20
  4. Step 4: Simplify right side
    90,736.20x = 12,349,586,985.66
  5. Step 5: Solve for x
    x = 12,349,586,985.66/90,736.20
  6. Step 6: Final answer
    x = 136,104.30

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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.