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Finding the Fourth Proportional to 88,266.40, 132,313.20 and 78,935.20

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Solution

The fourth proportional to 88,266.40, 132,313.20 and 78,935.20 is: 118,325.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,266.40 : 132,313.20 = 78,935.20 : x
  2. Step 2: Convert to fraction form
    88,266.40/132,313.20 = 78,935.20/x
  3. Step 3: Cross multiply
    88,266.40x = 132,313.20 × 78,935.20
  4. Step 4: Simplify right side
    88,266.40x = 10,444,168,904.64
  5. Step 5: Solve for x
    x = 10,444,168,904.64/88,266.40
  6. Step 6: Final answer
    x = 118,325.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.