Home / 137,579.04-189,789.18-89,860.32

Finding the Fourth Proportional to 137,579.04, 189,789.18 and 89,860.32

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Solution

The fourth proportional to 137,579.04, 189,789.18 and 89,860.32 is: 123,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,579.04 : 189,789.18 = 89,860.32 : x
  2. Step 2: Convert to fraction form
    137,579.04/189,789.18 = 89,860.32/x
  3. Step 3: Cross multiply
    137,579.04x = 189,789.18 × 89,860.32
  4. Step 4: Simplify right side
    137,579.04x = 17,054,516,447.34
  5. Step 5: Solve for x
    x = 17,054,516,447.34/137,579.04
  6. Step 6: Final answer
    x = 123,961.59

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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.