Home / 137,599.05-189,710.91-89,115.32

Finding the Fourth Proportional to 137,599.05, 189,710.91 and 89,115.32

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Solution

The fourth proportional to 137,599.05, 189,710.91 and 89,115.32 is: 122,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,599.05 : 189,710.91 = 89,115.32 : x
  2. Step 2: Convert to fraction form
    137,599.05/189,710.91 = 89,115.32/x
  3. Step 3: Cross multiply
    137,599.05x = 189,710.91 × 89,115.32
  4. Step 4: Simplify right side
    137,599.05x = 16,906,148,926.42
  5. Step 5: Solve for x
    x = 16,906,148,926.42/137,599.05
  6. Step 6: Final answer
    x = 122,865.30

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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.