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Finding the Fourth Proportional to 108,710.96, 150,022.66 and 65,684.46

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Solution

The fourth proportional to 108,710.96, 150,022.66 and 65,684.46 is: 90,645.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,710.96 : 150,022.66 = 65,684.46 : x
  2. Step 2: Convert to fraction form
    108,710.96/150,022.66 = 65,684.46/x
  3. Step 3: Cross multiply
    108,710.96x = 150,022.66 × 65,684.46
  4. Step 4: Simplify right side
    108,710.96x = 9,854,157,409.86
  5. Step 5: Solve for x
    x = 9,854,157,409.86/108,710.96
  6. Step 6: Final answer
    x = 90,645.48

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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.