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Finding the Fourth Proportional to 104,653.10, 156,979.65 and 73,160.30

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Solution

The fourth proportional to 104,653.10, 156,979.65 and 73,160.30 is: 109,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,653.10 : 156,979.65 = 73,160.30 : x
  2. Step 2: Convert to fraction form
    104,653.10/156,979.65 = 73,160.30/x
  3. Step 3: Cross multiply
    104,653.10x = 156,979.65 × 73,160.30
  4. Step 4: Simplify right side
    104,653.10x = 11,484,678,287.90
  5. Step 5: Solve for x
    x = 11,484,678,287.90/104,653.10
  6. Step 6: Final answer
    x = 109,740.45

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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.