Home / 137,372.40-189,582.66-89,754.12

Finding the Fourth Proportional to 137,372.40, 189,582.66 and 89,754.12

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Solution

The fourth proportional to 137,372.40, 189,582.66 and 89,754.12 is: 123,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,372.40 : 189,582.66 = 89,754.12 : x
  2. Step 2: Convert to fraction form
    137,372.40/189,582.66 = 89,754.12/x
  3. Step 3: Cross multiply
    137,372.40x = 189,582.66 × 89,754.12
  4. Step 4: Simplify right side
    137,372.40x = 17,015,824,815.56
  5. Step 5: Solve for x
    x = 17,015,824,815.56/137,372.40
  6. Step 6: Final answer
    x = 123,866.40

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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.