Home / 198,099.74-273,426.42-121,637.16

Finding the Fourth Proportional to 198,099.74, 273,426.42 and 121,637.16

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Solution

The fourth proportional to 198,099.74, 273,426.42 and 121,637.16 is: 167,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,099.74 : 273,426.42 = 121,637.16 : x
  2. Step 2: Convert to fraction form
    198,099.74/273,426.42 = 121,637.16/x
  3. Step 3: Cross multiply
    198,099.74x = 273,426.42 × 121,637.16
  4. Step 4: Simplify right side
    198,099.74x = 33,258,811,830.64
  5. Step 5: Solve for x
    x = 33,258,811,830.64/198,099.74
  6. Step 6: Final answer
    x = 167,889.23

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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.