Home / 135,316.58-186,737.24-74,891.39

Finding the Fourth Proportional to 135,316.58, 186,737.24 and 74,891.39

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Solution

The fourth proportional to 135,316.58, 186,737.24 and 74,891.39 is: 103,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,316.58 : 186,737.24 = 74,891.39 : x
  2. Step 2: Convert to fraction form
    135,316.58/186,737.24 = 74,891.39/x
  3. Step 3: Cross multiply
    135,316.58x = 186,737.24 × 74,891.39
  4. Step 4: Simplify right side
    135,316.58x = 13,985,011,468.36
  5. Step 5: Solve for x
    x = 13,985,011,468.36/135,316.58
  6. Step 6: Final answer
    x = 103,350.32

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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.