Home / 134,768.50-186,040.32-87,045.12

Finding the Fourth Proportional to 134,768.50, 186,040.32 and 87,045.12

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Solution

The fourth proportional to 134,768.50, 186,040.32 and 87,045.12 is: 120,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,768.50 : 186,040.32 = 87,045.12 : x
  2. Step 2: Convert to fraction form
    134,768.50/186,040.32 = 87,045.12/x
  3. Step 3: Cross multiply
    134,768.50x = 186,040.32 × 87,045.12
  4. Step 4: Simplify right side
    134,768.50x = 16,193,901,979.24
  5. Step 5: Solve for x
    x = 16,193,901,979.24/134,768.50
  6. Step 6: Final answer
    x = 120,160.88

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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.