Home / 137,539.62-189,887.49-89,872.74

Finding the Fourth Proportional to 137,539.62, 189,887.49 and 89,872.74

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Solution

The fourth proportional to 137,539.62, 189,887.49 and 89,872.74 is: 124,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,539.62 : 189,887.49 = 89,872.74 : x
  2. Step 2: Convert to fraction form
    137,539.62/189,887.49 = 89,872.74/x
  3. Step 3: Cross multiply
    137,539.62x = 189,887.49 × 89,872.74
  4. Step 4: Simplify right side
    137,539.62x = 17,065,709,018.02
  5. Step 5: Solve for x
    x = 17,065,709,018.02/137,539.62
  6. Step 6: Final answer
    x = 124,078.49

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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.