Home / 158,356.36-218,404.38-122,642.92

Finding the Fourth Proportional to 158,356.36, 218,404.38 and 122,642.92

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Solution

The fourth proportional to 158,356.36, 218,404.38 and 122,642.92 is: 169,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,356.36 : 218,404.38 = 122,642.92 : x
  2. Step 2: Convert to fraction form
    158,356.36/218,404.38 = 122,642.92/x
  3. Step 3: Cross multiply
    158,356.36x = 218,404.38 × 122,642.92
  4. Step 4: Simplify right side
    158,356.36x = 26,785,750,903.99
  5. Step 5: Solve for x
    x = 26,785,750,903.99/158,356.36
  6. Step 6: Final answer
    x = 169,148.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.