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Finding the Fourth Proportional to 169,959.60, 234,527.40 and 129,699.36

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Solution

The fourth proportional to 169,959.60, 234,527.40 and 129,699.36 is: 178,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,959.60 : 234,527.40 = 129,699.36 : x
  2. Step 2: Convert to fraction form
    169,959.60/234,527.40 = 129,699.36/x
  3. Step 3: Cross multiply
    169,959.60x = 234,527.40 × 129,699.36
  4. Step 4: Simplify right side
    169,959.60x = 30,418,053,682.46
  5. Step 5: Solve for x
    x = 30,418,053,682.46/169,959.60
  6. Step 6: Final answer
    x = 178,972.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.