Home / 138,051.50-207,081.84-38,203.34

Finding the Fourth Proportional to 138,051.50, 207,081.84 and 38,203.34

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Solution

The fourth proportional to 138,051.50, 207,081.84 and 38,203.34 is: 57,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,051.50 : 207,081.84 = 38,203.34 : x
  2. Step 2: Convert to fraction form
    138,051.50/207,081.84 = 38,203.34/x
  3. Step 3: Cross multiply
    138,051.50x = 207,081.84 × 38,203.34
  4. Step 4: Simplify right side
    138,051.50x = 7,911,217,941.35
  5. Step 5: Solve for x
    x = 7,911,217,941.35/138,051.50
  6. Step 6: Final answer
    x = 57,306.28

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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.