Home / 189,894.51-284,754.06-69,921.33

Finding the Fourth Proportional to 189,894.51, 284,754.06 and 69,921.33

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Solution

The fourth proportional to 189,894.51, 284,754.06 and 69,921.33 is: 104,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,894.51 : 284,754.06 = 69,921.33 : x
  2. Step 2: Convert to fraction form
    189,894.51/284,754.06 = 69,921.33/x
  3. Step 3: Cross multiply
    189,894.51x = 284,754.06 × 69,921.33
  4. Step 4: Simplify right side
    189,894.51x = 19,910,382,598.10
  5. Step 5: Solve for x
    x = 19,910,382,598.10/189,894.51
  6. Step 6: Final answer
    x = 104,849.70

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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.