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Finding the Fourth Proportional to 172,352.64, 237,911.04 and 100,755.60

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Solution

The fourth proportional to 172,352.64, 237,911.04 and 100,755.60 is: 139,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,352.64 : 237,911.04 = 100,755.60 : x
  2. Step 2: Convert to fraction form
    172,352.64/237,911.04 = 100,755.60/x
  3. Step 3: Cross multiply
    172,352.64x = 237,911.04 × 100,755.60
  4. Step 4: Simplify right side
    172,352.64x = 23,970,869,581.82
  5. Step 5: Solve for x
    x = 23,970,869,581.82/172,352.64
  6. Step 6: Final answer
    x = 139,080.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.