Home / 197,688.31-272,829.41-112,818.13

Finding the Fourth Proportional to 197,688.31, 272,829.41 and 112,818.13

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Solution

The fourth proportional to 197,688.31, 272,829.41 and 112,818.13 is: 155,700.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,688.31 : 272,829.41 = 112,818.13 : x
  2. Step 2: Convert to fraction form
    197,688.31/272,829.41 = 112,818.13/x
  3. Step 3: Cross multiply
    197,688.31x = 272,829.41 × 112,818.13
  4. Step 4: Simplify right side
    197,688.31x = 30,780,103,845.20
  5. Step 5: Solve for x
    x = 30,780,103,845.20/197,688.31
  6. Step 6: Final answer
    x = 155,700.17

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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.