Home / 154,700.91-213,446.08-89,273.16

Finding the Fourth Proportional to 154,700.91, 213,446.08 and 89,273.16

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Solution

The fourth proportional to 154,700.91, 213,446.08 and 89,273.16 is: 123,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,700.91 : 213,446.08 = 89,273.16 : x
  2. Step 2: Convert to fraction form
    154,700.91/213,446.08 = 89,273.16/x
  3. Step 3: Cross multiply
    154,700.91x = 213,446.08 × 89,273.16
  4. Step 4: Simplify right side
    154,700.91x = 19,055,004,983.98
  5. Step 5: Solve for x
    x = 19,055,004,983.98/154,700.91
  6. Step 6: Final answer
    x = 123,173.20

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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.