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Finding the Fourth Proportional to 169,589.76, 254,376.96 and 69,788.16

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Solution

The fourth proportional to 169,589.76, 254,376.96 and 69,788.16 is: 104,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,589.76 : 254,376.96 = 69,788.16 : x
  2. Step 2: Convert to fraction form
    169,589.76/254,376.96 = 69,788.16/x
  3. Step 3: Cross multiply
    169,589.76x = 254,376.96 × 69,788.16
  4. Step 4: Simplify right side
    169,589.76x = 17,752,499,984.79
  5. Step 5: Solve for x
    x = 17,752,499,984.79/169,589.76
  6. Step 6: Final answer
    x = 104,679.08

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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.