Home / 197,583.12-272,666.88-112,705.20

Finding the Fourth Proportional to 197,583.12, 272,666.88 and 112,705.20

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Solution

The fourth proportional to 197,583.12, 272,666.88 and 112,705.20 is: 155,534.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,583.12 : 272,666.88 = 112,705.20 : x
  2. Step 2: Convert to fraction form
    197,583.12/272,666.88 = 112,705.20/x
  3. Step 3: Cross multiply
    197,583.12x = 272,666.88 × 112,705.20
  4. Step 4: Simplify right side
    197,583.12x = 30,730,975,243.78
  5. Step 5: Solve for x
    x = 30,730,975,243.78/197,583.12
  6. Step 6: Final answer
    x = 155,534.42

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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.