Home / 109,604.04-151,115.88-89,440.44

Finding the Fourth Proportional to 109,604.04, 151,115.88 and 89,440.44

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Solution

The fourth proportional to 109,604.04, 151,115.88 and 89,440.44 is: 123,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,604.04 : 151,115.88 = 89,440.44 : x
  2. Step 2: Convert to fraction form
    109,604.04/151,115.88 = 89,440.44/x
  3. Step 3: Cross multiply
    109,604.04x = 151,115.88 × 89,440.44
  4. Step 4: Simplify right side
    109,604.04x = 13,515,870,798.19
  5. Step 5: Solve for x
    x = 13,515,870,798.19/109,604.04
  6. Step 6: Final answer
    x = 123,315.44

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1.5x scale

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.