Home / 197,407.05-272,414.50-112,507.71

Finding the Fourth Proportional to 197,407.05, 272,414.50 and 112,507.71

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Solution

The fourth proportional to 197,407.05, 272,414.50 and 112,507.71 is: 155,256.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,407.05 : 272,414.50 = 112,507.71 : x
  2. Step 2: Convert to fraction form
    197,407.05/272,414.50 = 112,507.71/x
  3. Step 3: Cross multiply
    197,407.05x = 272,414.50 × 112,507.71
  4. Step 4: Simplify right side
    197,407.05x = 30,648,731,565.80
  5. Step 5: Solve for x
    x = 30,648,731,565.80/197,407.05
  6. Step 6: Final answer
    x = 155,256.52

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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.