Home / 138,702.96-191,606.04-110,372.40

Finding the Fourth Proportional to 138,702.96, 191,606.04 and 110,372.40

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Solution

The fourth proportional to 138,702.96, 191,606.04 and 110,372.40 is: 152,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,702.96 : 191,606.04 = 110,372.40 : x
  2. Step 2: Convert to fraction form
    138,702.96/191,606.04 = 110,372.40/x
  3. Step 3: Cross multiply
    138,702.96x = 191,606.04 × 110,372.40
  4. Step 4: Simplify right side
    138,702.96x = 21,148,018,489.30
  5. Step 5: Solve for x
    x = 21,148,018,489.30/138,702.96
  6. Step 6: Final answer
    x = 152,469.84

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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.