Home / 137,595.79-189,706.41-89,112.05

Finding the Fourth Proportional to 137,595.79, 189,706.41 and 89,112.05

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Solution

The fourth proportional to 137,595.79, 189,706.41 and 89,112.05 is: 122,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,595.79 : 189,706.41 = 89,112.05 : x
  2. Step 2: Convert to fraction form
    137,595.79/189,706.41 = 89,112.05/x
  3. Step 3: Cross multiply
    137,595.79x = 189,706.41 × 89,112.05
  4. Step 4: Simplify right side
    137,595.79x = 16,905,126,856.11
  5. Step 5: Solve for x
    x = 16,905,126,856.11/137,595.79
  6. Step 6: Final answer
    x = 122,860.78

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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.