Home / 189,468.36-284,290.20-84,356.28

Finding the Fourth Proportional to 189,468.36, 284,290.20 and 84,356.28

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Solution

The fourth proportional to 189,468.36, 284,290.20 and 84,356.28 is: 126,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,468.36 : 284,290.20 = 84,356.28 : x
  2. Step 2: Convert to fraction form
    189,468.36/284,290.20 = 84,356.28/x
  3. Step 3: Cross multiply
    189,468.36x = 284,290.20 × 84,356.28
  4. Step 4: Simplify right side
    189,468.36x = 23,981,663,712.46
  5. Step 5: Solve for x
    x = 23,981,663,712.46/189,468.36
  6. Step 6: Final answer
    x = 126,573.45

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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.