Home / 134,724.89-185,920.35-77,367.98

Finding the Fourth Proportional to 134,724.89, 185,920.35 and 77,367.98

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Solution

The fourth proportional to 134,724.89, 185,920.35 and 77,367.98 is: 106,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,724.89 : 185,920.35 = 77,367.98 : x
  2. Step 2: Convert to fraction form
    134,724.89/185,920.35 = 77,367.98/x
  3. Step 3: Cross multiply
    134,724.89x = 185,920.35 × 77,367.98
  4. Step 4: Simplify right side
    134,724.89x = 14,384,281,920.39
  5. Step 5: Solve for x
    x = 14,384,281,920.39/134,724.89
  6. Step 6: Final answer
    x = 106,767.81

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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.