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Finding the Fourth Proportional to 136,216.80, 204,670.80 and 121,010.40

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Solution

The fourth proportional to 136,216.80, 204,670.80 and 121,010.40 is: 181,822.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,216.80 : 204,670.80 = 121,010.40 : x
  2. Step 2: Convert to fraction form
    136,216.80/204,670.80 = 121,010.40/x
  3. Step 3: Cross multiply
    136,216.80x = 204,670.80 × 121,010.40
  4. Step 4: Simplify right side
    136,216.80x = 24,767,295,376.32
  5. Step 5: Solve for x
    x = 24,767,295,376.32/136,216.80
  6. Step 6: Final answer
    x = 181,822.62

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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.