Home / 138,045.40-207,072.70-38,197.24

Finding the Fourth Proportional to 138,045.40, 207,072.70 and 38,197.24

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Solution

The fourth proportional to 138,045.40, 207,072.70 and 38,197.24 is: 57,297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,045.40 : 207,072.70 = 38,197.24 : x
  2. Step 2: Convert to fraction form
    138,045.40/207,072.70 = 38,197.24/x
  3. Step 3: Cross multiply
    138,045.40x = 207,072.70 × 38,197.24
  4. Step 4: Simplify right side
    138,045.40x = 7,909,605,619.35
  5. Step 5: Solve for x
    x = 7,909,605,619.35/138,045.40
  6. Step 6: Final answer
    x = 57,297.13

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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.