Home / 197,731.09-272,888.39-112,860.91

Finding the Fourth Proportional to 197,731.09, 272,888.39 and 112,860.91

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Solution

The fourth proportional to 197,731.09, 272,888.39 and 112,860.91 is: 155,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,731.09 : 272,888.39 = 112,860.91 : x
  2. Step 2: Convert to fraction form
    197,731.09/272,888.39 = 112,860.91/x
  3. Step 3: Cross multiply
    197,731.09x = 272,888.39 × 112,860.91
  4. Step 4: Simplify right side
    197,731.09x = 30,798,432,023.83
  5. Step 5: Solve for x
    x = 30,798,432,023.83/197,731.09
  6. Step 6: Final answer
    x = 155,759.18

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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.