Home / 138,972.92-191,794.43-116,271.86

Finding the Fourth Proportional to 138,972.92, 191,794.43 and 116,271.86

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Solution

The fourth proportional to 138,972.92, 191,794.43 and 116,271.86 is: 160,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,972.92 : 191,794.43 = 116,271.86 : x
  2. Step 2: Convert to fraction form
    138,972.92/191,794.43 = 116,271.86/x
  3. Step 3: Cross multiply
    138,972.92x = 191,794.43 × 116,271.86
  4. Step 4: Simplify right side
    138,972.92x = 22,300,294,445.45
  5. Step 5: Solve for x
    x = 22,300,294,445.45/138,972.92
  6. Step 6: Final answer
    x = 160,465.04

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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.