Home / 138,914.42-191,702.82-75,252.18

Finding the Fourth Proportional to 138,914.42, 191,702.82 and 75,252.18

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Solution

The fourth proportional to 138,914.42, 191,702.82 and 75,252.18 is: 103,848.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,914.42 : 191,702.82 = 75,252.18 : x
  2. Step 2: Convert to fraction form
    138,914.42/191,702.82 = 75,252.18/x
  3. Step 3: Cross multiply
    138,914.42x = 191,702.82 × 75,252.18
  4. Step 4: Simplify right side
    138,914.42x = 14,426,055,117.15
  5. Step 5: Solve for x
    x = 14,426,055,117.15/138,914.42
  6. Step 6: Final answer
    x = 103,848.51

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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.