Home / 93,678.40-140,517.60-92,123.20

Finding the Fourth Proportional to 93,678.40, 140,517.60 and 92,123.20

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Solution

The fourth proportional to 93,678.40, 140,517.60 and 92,123.20 is: 138,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,678.40 : 140,517.60 = 92,123.20 : x
  2. Step 2: Convert to fraction form
    93,678.40/140,517.60 = 92,123.20/x
  3. Step 3: Cross multiply
    93,678.40x = 140,517.60 × 92,123.20
  4. Step 4: Simplify right side
    93,678.40x = 12,944,930,968.32
  5. Step 5: Solve for x
    x = 12,944,930,968.32/93,678.40
  6. Step 6: Final answer
    x = 138,184.80

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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.