Home / 134,880.32-186,134.85-74,450.98

Finding the Fourth Proportional to 134,880.32, 186,134.85 and 74,450.98

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Solution

The fourth proportional to 134,880.32, 186,134.85 and 74,450.98 is: 102,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,880.32 : 186,134.85 = 74,450.98 : x
  2. Step 2: Convert to fraction form
    134,880.32/186,134.85 = 74,450.98/x
  3. Step 3: Cross multiply
    134,880.32x = 186,134.85 × 74,450.98
  4. Step 4: Simplify right side
    134,880.32x = 13,857,920,691.72
  5. Step 5: Solve for x
    x = 13,857,920,691.72/134,880.32
  6. Step 6: Final answer
    x = 102,742.35

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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.