Home / 139,982.40-210,959.25-126,673.32

Finding the Fourth Proportional to 139,982.40, 210,959.25 and 126,673.32

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Solution

The fourth proportional to 139,982.40, 210,959.25 and 126,673.32 is: 190,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,982.40 : 210,959.25 = 126,673.32 : x
  2. Step 2: Convert to fraction form
    139,982.40/210,959.25 = 126,673.32/x
  3. Step 3: Cross multiply
    139,982.40x = 210,959.25 × 126,673.32
  4. Step 4: Simplify right side
    139,982.40x = 26,722,908,582.21
  5. Step 5: Solve for x
    x = 26,722,908,582.21/139,982.40
  6. Step 6: Final answer
    x = 190,901.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.