Home / 189,922.36-284,800.42-90,111.04

Finding the Fourth Proportional to 189,922.36, 284,800.42 and 90,111.04

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Solution

The fourth proportional to 189,922.36, 284,800.42 and 90,111.04 is: 135,127.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,922.36 : 284,800.42 = 90,111.04 : x
  2. Step 2: Convert to fraction form
    189,922.36/284,800.42 = 90,111.04/x
  3. Step 3: Cross multiply
    189,922.36x = 284,800.42 × 90,111.04
  4. Step 4: Simplify right side
    189,922.36x = 25,663,662,038.64
  5. Step 5: Solve for x
    x = 25,663,662,038.64/189,922.36
  6. Step 6: Final answer
    x = 135,127.12

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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.