Home / 136,476.16-188,337.48-79,126.60

Finding the Fourth Proportional to 136,476.16, 188,337.48 and 79,126.60

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Solution

The fourth proportional to 136,476.16, 188,337.48 and 79,126.60 is: 109,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,476.16 : 188,337.48 = 79,126.60 : x
  2. Step 2: Convert to fraction form
    136,476.16/188,337.48 = 79,126.60/x
  3. Step 3: Cross multiply
    136,476.16x = 188,337.48 × 79,126.60
  4. Step 4: Simplify right side
    136,476.16x = 14,902,504,444.97
  5. Step 5: Solve for x
    x = 14,902,504,444.97/136,476.16
  6. Step 6: Final answer
    x = 109,194.93

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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.