Home / 134,905.92-186,176.20-77,563.84

Finding the Fourth Proportional to 134,905.92, 186,176.20 and 77,563.84

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Solution

The fourth proportional to 134,905.92, 186,176.20 and 77,563.84 is: 107,041.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,905.92 : 186,176.20 = 77,563.84 : x
  2. Step 2: Convert to fraction form
    134,905.92/186,176.20 = 77,563.84/x
  3. Step 3: Cross multiply
    134,905.92x = 186,176.20 × 77,563.84
  4. Step 4: Simplify right side
    134,905.92x = 14,440,540,988.61
  5. Step 5: Solve for x
    x = 14,440,540,988.61/134,905.92
  6. Step 6: Final answer
    x = 107,041.57

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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.