Home / 198,407.53-273,798.45-112,365.12

Finding the Fourth Proportional to 198,407.53, 273,798.45 and 112,365.12

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Solution

The fourth proportional to 198,407.53, 273,798.45 and 112,365.12 is: 155,061.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,407.53 : 273,798.45 = 112,365.12 : x
  2. Step 2: Convert to fraction form
    198,407.53/273,798.45 = 112,365.12/x
  3. Step 3: Cross multiply
    198,407.53x = 273,798.45 × 112,365.12
  4. Step 4: Simplify right side
    198,407.53x = 30,765,397,032.84
  5. Step 5: Solve for x
    x = 30,765,397,032.84/198,407.53
  6. Step 6: Final answer
    x = 155,061.64

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1.5x scale

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.