Home / 197,681.31-272,819.75-112,811.13

Finding the Fourth Proportional to 197,681.31, 272,819.75 and 112,811.13

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Solution

The fourth proportional to 197,681.31, 272,819.75 and 112,811.13 is: 155,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,681.31 : 272,819.75 = 112,811.13 : x
  2. Step 2: Convert to fraction form
    197,681.31/272,819.75 = 112,811.13/x
  3. Step 3: Cross multiply
    197,681.31x = 272,819.75 × 112,811.13
  4. Step 4: Simplify right side
    197,681.31x = 30,777,103,719.76
  5. Step 5: Solve for x
    x = 30,777,103,719.76/197,681.31
  6. Step 6: Final answer
    x = 155,690.51

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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.