Home / 158,126.89-218,224.79-91,080.49

Finding the Fourth Proportional to 158,126.89, 218,224.79 and 91,080.49

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Solution

The fourth proportional to 158,126.89, 218,224.79 and 91,080.49 is: 125,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,126.89 : 218,224.79 = 91,080.49 : x
  2. Step 2: Convert to fraction form
    158,126.89/218,224.79 = 91,080.49/x
  3. Step 3: Cross multiply
    158,126.89x = 218,224.79 × 91,080.49
  4. Step 4: Simplify right side
    158,126.89x = 19,876,020,803.35
  5. Step 5: Solve for x
    x = 19,876,020,803.35/158,126.89
  6. Step 6: Final answer
    x = 125,696.65

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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.