Home / 138,101.42-207,129.06-38,271.74

Finding the Fourth Proportional to 138,101.42, 207,129.06 and 38,271.74

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Solution

The fourth proportional to 138,101.42, 207,129.06 and 38,271.74 is: 57,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,101.42 : 207,129.06 = 38,271.74 : x
  2. Step 2: Convert to fraction form
    138,101.42/207,129.06 = 38,271.74/x
  3. Step 3: Cross multiply
    138,101.42x = 207,129.06 × 38,271.74
  4. Step 4: Simplify right side
    138,101.42x = 7,927,189,530.76
  5. Step 5: Solve for x
    x = 7,927,189,530.76/138,101.42
  6. Step 6: Final answer
    x = 57,401.22

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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.