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Finding the Fourth Proportional to 93,007.20, 139,219.20 and 66,763.20

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Solution

The fourth proportional to 93,007.20, 139,219.20 and 66,763.20 is: 99,935.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,007.20 : 139,219.20 = 66,763.20 : x
  2. Step 2: Convert to fraction form
    93,007.20/139,219.20 = 66,763.20/x
  3. Step 3: Cross multiply
    93,007.20x = 139,219.20 × 66,763.20
  4. Step 4: Simplify right side
    93,007.20x = 9,294,719,293.44
  5. Step 5: Solve for x
    x = 9,294,719,293.44/93,007.20
  6. Step 6: Final answer
    x = 99,935.48

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1.5x scale

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.