Home / 138,044.49-207,071.37-38,196.35

Finding the Fourth Proportional to 138,044.49, 207,071.37 and 38,196.35

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Solution

The fourth proportional to 138,044.49, 207,071.37 and 38,196.35 is: 57,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,044.49 : 207,071.37 = 38,196.35 : x
  2. Step 2: Convert to fraction form
    138,044.49/207,071.37 = 38,196.35/x
  3. Step 3: Cross multiply
    138,044.49x = 207,071.37 × 38,196.35
  4. Step 4: Simplify right side
    138,044.49x = 7,909,370,523.50
  5. Step 5: Solve for x
    x = 7,909,370,523.50/138,044.49
  6. Step 6: Final answer
    x = 57,295.81

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1.5x scale

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.