Home / 158,621.49-218,935.98-107,719.20

Finding the Fourth Proportional to 158,621.49, 218,935.98 and 107,719.20

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Solution

The fourth proportional to 158,621.49, 218,935.98 and 107,719.20 is: 148,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,621.49 : 218,935.98 = 107,719.20 : x
  2. Step 2: Convert to fraction form
    158,621.49/218,935.98 = 107,719.20/x
  3. Step 3: Cross multiply
    158,621.49x = 218,935.98 × 107,719.20
  4. Step 4: Simplify right side
    158,621.49x = 23,583,608,616.82
  5. Step 5: Solve for x
    x = 23,583,608,616.82/158,621.49
  6. Step 6: Final answer
    x = 148,678.52

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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.