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Finding the Fourth Proportional to 88,974.40, 133,461.60 and 74,977.60

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Solution

The fourth proportional to 88,974.40, 133,461.60 and 74,977.60 is: 112,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,974.40 : 133,461.60 = 74,977.60 : x
  2. Step 2: Convert to fraction form
    88,974.40/133,461.60 = 74,977.60/x
  3. Step 3: Cross multiply
    88,974.40x = 133,461.60 × 74,977.60
  4. Step 4: Simplify right side
    88,974.40x = 10,006,630,460.16
  5. Step 5: Solve for x
    x = 10,006,630,460.16/88,974.40
  6. Step 6: Final answer
    x = 112,466.40

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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.