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Finding the Fourth Proportional to 110,457.60, 165,643.20 and 40,300.80

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Solution

The fourth proportional to 110,457.60, 165,643.20 and 40,300.80 is: 60,435.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,457.60 : 165,643.20 = 40,300.80 : x
  2. Step 2: Convert to fraction form
    110,457.60/165,643.20 = 40,300.80/x
  3. Step 3: Cross multiply
    110,457.60x = 165,643.20 × 40,300.80
  4. Step 4: Simplify right side
    110,457.60x = 6,675,553,474.56
  5. Step 5: Solve for x
    x = 6,675,553,474.56/110,457.60
  6. Step 6: Final answer
    x = 60,435.44

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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.