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Finding the Fourth Proportional to 108,048.60, 161,975.70 and 68,585.40

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Solution

The fourth proportional to 108,048.60, 161,975.70 and 68,585.40 is: 102,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,048.60 : 161,975.70 = 68,585.40 : x
  2. Step 2: Convert to fraction form
    108,048.60/161,975.70 = 68,585.40/x
  3. Step 3: Cross multiply
    108,048.60x = 161,975.70 × 68,585.40
  4. Step 4: Simplify right side
    108,048.60x = 11,109,168,174.78
  5. Step 5: Solve for x
    x = 11,109,168,174.78/108,048.60
  6. Step 6: Final answer
    x = 102,816.40

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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.