Home / 109,047.70-150,458.94-66,590.74

Finding the Fourth Proportional to 109,047.70, 150,458.94 and 66,590.74

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Solution

The fourth proportional to 109,047.70, 150,458.94 and 66,590.74 is: 91,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,047.70 : 150,458.94 = 66,590.74 : x
  2. Step 2: Convert to fraction form
    109,047.70/150,458.94 = 66,590.74/x
  3. Step 3: Cross multiply
    109,047.70x = 150,458.94 × 66,590.74
  4. Step 4: Simplify right side
    109,047.70x = 10,019,172,154.22
  5. Step 5: Solve for x
    x = 10,019,172,154.22/109,047.70
  6. Step 6: Final answer
    x = 91,878.80

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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.