Home / 197,287.92-272,256.80-112,405.59

Finding the Fourth Proportional to 197,287.92, 272,256.80 and 112,405.59

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Solution

The fourth proportional to 197,287.92, 272,256.80 and 112,405.59 is: 155,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,287.92 : 272,256.80 = 112,405.59 : x
  2. Step 2: Convert to fraction form
    197,287.92/272,256.80 = 112,405.59/x
  3. Step 3: Cross multiply
    197,287.92x = 272,256.80 × 112,405.59
  4. Step 4: Simplify right side
    197,287.92x = 30,603,185,673.48
  5. Step 5: Solve for x
    x = 30,603,185,673.48/197,287.92
  6. Step 6: Final answer
    x = 155,119.41

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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.