Home / 101,645.22-140,268.31-56,322.81

Finding the Fourth Proportional to 101,645.22, 140,268.31 and 56,322.81

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Solution

The fourth proportional to 101,645.22, 140,268.31 and 56,322.81 is: 77,724.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,645.22 : 140,268.31 = 56,322.81 : x
  2. Step 2: Convert to fraction form
    101,645.22/140,268.31 = 56,322.81/x
  3. Step 3: Cross multiply
    101,645.22x = 140,268.31 × 56,322.81
  4. Step 4: Simplify right side
    101,645.22x = 7,900,305,373.15
  5. Step 5: Solve for x
    x = 7,900,305,373.15/101,645.22
  6. Step 6: Final answer
    x = 77,724.32

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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.