Home / 189,743.10-284,432.40-109,698.90

Finding the Fourth Proportional to 189,743.10, 284,432.40 and 109,698.90

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Solution

The fourth proportional to 189,743.10, 284,432.40 and 109,698.90 is: 164,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,743.10 : 284,432.40 = 109,698.90 : x
  2. Step 2: Convert to fraction form
    189,743.10/284,432.40 = 109,698.90/x
  3. Step 3: Cross multiply
    189,743.10x = 284,432.40 × 109,698.90
  4. Step 4: Simplify right side
    189,743.10x = 31,201,921,404.36
  5. Step 5: Solve for x
    x = 31,201,921,404.36/189,743.10
  6. Step 6: Final answer
    x = 164,442.98

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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.