Home / 89,880.11-134,715.20-67,621.98

Finding the Fourth Proportional to 89,880.11, 134,715.20 and 67,621.98

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Solution

The fourth proportional to 89,880.11, 134,715.20 and 67,621.98 is: 101,354.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,880.11 : 134,715.20 = 67,621.98 : x
  2. Step 2: Convert to fraction form
    89,880.11/134,715.20 = 67,621.98/x
  3. Step 3: Cross multiply
    89,880.11x = 134,715.20 × 67,621.98
  4. Step 4: Simplify right side
    89,880.11x = 9,109,708,221.99
  5. Step 5: Solve for x
    x = 9,109,708,221.99/89,880.11
  6. Step 6: Final answer
    x = 101,354.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.