Home / 145,209.14-200,391.03-80,684.14

Finding the Fourth Proportional to 145,209.14, 200,391.03 and 80,684.14

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Solution

The fourth proportional to 145,209.14, 200,391.03 and 80,684.14 is: 111,345.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,209.14 : 200,391.03 = 80,684.14 : x
  2. Step 2: Convert to fraction form
    145,209.14/200,391.03 = 80,684.14/x
  3. Step 3: Cross multiply
    145,209.14x = 200,391.03 × 80,684.14
  4. Step 4: Simplify right side
    145,209.14x = 16,168,377,919.26
  5. Step 5: Solve for x
    x = 16,168,377,919.26/145,209.14
  6. Step 6: Final answer
    x = 111,345.46

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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.