Home / 101,920.04-140,651.51-55,979.37

Finding the Fourth Proportional to 101,920.04, 140,651.51 and 55,979.37

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Solution

The fourth proportional to 101,920.04, 140,651.51 and 55,979.37 is: 77,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,920.04 : 140,651.51 = 55,979.37 : x
  2. Step 2: Convert to fraction form
    101,920.04/140,651.51 = 55,979.37/x
  3. Step 3: Cross multiply
    101,920.04x = 140,651.51 × 55,979.37
  4. Step 4: Simplify right side
    101,920.04x = 7,873,582,639.45
  5. Step 5: Solve for x
    x = 7,873,582,639.45/101,920.04
  6. Step 6: Final answer
    x = 77,252.55

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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.