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Finding the Fourth Proportional to 169,958.60, 255,010.80 and 86,852.60

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Solution

The fourth proportional to 169,958.60, 255,010.80 and 86,852.60 is: 130,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,958.60 : 255,010.80 = 86,852.60 : x
  2. Step 2: Convert to fraction form
    169,958.60/255,010.80 = 86,852.60/x
  3. Step 3: Cross multiply
    169,958.60x = 255,010.80 × 86,852.60
  4. Step 4: Simplify right side
    169,958.60x = 22,148,351,008.08
  5. Step 5: Solve for x
    x = 22,148,351,008.08/169,958.60
  6. Step 6: Final answer
    x = 130,316.15

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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.