Home / 108,322.23-149,505.34-72,574.57

Finding the Fourth Proportional to 108,322.23, 149,505.34 and 72,574.57

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Solution

The fourth proportional to 108,322.23, 149,505.34 and 72,574.57 is: 100,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,322.23 : 149,505.34 = 72,574.57 : x
  2. Step 2: Convert to fraction form
    108,322.23/149,505.34 = 72,574.57/x
  3. Step 3: Cross multiply
    108,322.23x = 149,505.34 × 72,574.57
  4. Step 4: Simplify right side
    108,322.23x = 10,850,285,015.68
  5. Step 5: Solve for x
    x = 10,850,285,015.68/108,322.23
  6. Step 6: Final answer
    x = 100,166.74

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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.