Home / 197,560.80-272,631.15-112,679.28

Finding the Fourth Proportional to 197,560.80, 272,631.15 and 112,679.28

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Solution

The fourth proportional to 197,560.80, 272,631.15 and 112,679.28 is: 155,495.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,560.80 : 272,631.15 = 112,679.28 : x
  2. Step 2: Convert to fraction form
    197,560.80/272,631.15 = 112,679.28/x
  3. Step 3: Cross multiply
    197,560.80x = 272,631.15 × 112,679.28
  4. Step 4: Simplify right side
    197,560.80x = 30,719,881,687.57
  5. Step 5: Solve for x
    x = 30,719,881,687.57/197,560.80
  6. Step 6: Final answer
    x = 155,495.84

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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.