Home / 134,769.50-186,041.70-87,046.12

Finding the Fourth Proportional to 134,769.50, 186,041.70 and 87,046.12

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Solution

The fourth proportional to 134,769.50, 186,041.70 and 87,046.12 is: 120,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,769.50 : 186,041.70 = 87,046.12 : x
  2. Step 2: Convert to fraction form
    134,769.50/186,041.70 = 87,046.12/x
  3. Step 3: Cross multiply
    134,769.50x = 186,041.70 × 87,046.12
  4. Step 4: Simplify right side
    134,769.50x = 16,194,208,143.20
  5. Step 5: Solve for x
    x = 16,194,208,143.20/134,769.50
  6. Step 6: Final answer
    x = 120,162.26

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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.