Home / 109,207.04-150,668-66,200.32

Finding the Fourth Proportional to 109,207.04, 150,668 and 66,200.32

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Solution

The fourth proportional to 109,207.04, 150,668 and 66,200.32 is: 91,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,207.04 : 150,668 = 66,200.32 : x
  2. Step 2: Convert to fraction form
    109,207.04/150,668 = 66,200.32/x
  3. Step 3: Cross multiply
    109,207.04x = 150,668 × 66,200.32
  4. Step 4: Simplify right side
    109,207.04x = 9,974,269,813.76
  5. Step 5: Solve for x
    x = 9,974,269,813.76/109,207.04
  6. Step 6: Final answer
    x = 91,333.58

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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.