Home / 135,088.80-186,406.38-74,651.23

Finding the Fourth Proportional to 135,088.80, 186,406.38 and 74,651.23

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Solution

The fourth proportional to 135,088.80, 186,406.38 and 74,651.23 is: 103,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,088.80 : 186,406.38 = 74,651.23 : x
  2. Step 2: Convert to fraction form
    135,088.80/186,406.38 = 74,651.23/x
  3. Step 3: Cross multiply
    135,088.80x = 186,406.38 × 74,651.23
  4. Step 4: Simplify right side
    135,088.80x = 13,915,464,731.32
  5. Step 5: Solve for x
    x = 13,915,464,731.32/135,088.80
  6. Step 6: Final answer
    x = 103,009.76

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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.