Home / 115,284.32-159,166.41-72,322.71

Finding the Fourth Proportional to 115,284.32, 159,166.41 and 72,322.71

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Solution

The fourth proportional to 115,284.32, 159,166.41 and 72,322.71 is: 99,851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,284.32 : 159,166.41 = 72,322.71 : x
  2. Step 2: Convert to fraction form
    115,284.32/159,166.41 = 72,322.71/x
  3. Step 3: Cross multiply
    115,284.32x = 159,166.41 × 72,322.71
  4. Step 4: Simplify right side
    115,284.32x = 11,511,346,437.84
  5. Step 5: Solve for x
    x = 11,511,346,437.84/115,284.32
  6. Step 6: Final answer
    x = 99,851.79

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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.