Home / 134,165.56-185,140.94-80,423.68

Finding the Fourth Proportional to 134,165.56, 185,140.94 and 80,423.68

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Solution

The fourth proportional to 134,165.56, 185,140.94 and 80,423.68 is: 110,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,165.56 : 185,140.94 = 80,423.68 : x
  2. Step 2: Convert to fraction form
    134,165.56/185,140.94 = 80,423.68/x
  3. Step 3: Cross multiply
    134,165.56x = 185,140.94 × 80,423.68
  4. Step 4: Simplify right side
    134,165.56x = 14,889,715,713.46
  5. Step 5: Solve for x
    x = 14,889,715,713.46/134,165.56
  6. Step 6: Final answer
    x = 110,980.16

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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.