Home / 201,976.49-278,740.02-111,332.25

Finding the Fourth Proportional to 201,976.49, 278,740.02 and 111,332.25

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Solution

The fourth proportional to 201,976.49, 278,740.02 and 111,332.25 is: 153,645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,976.49 : 278,740.02 = 111,332.25 : x
  2. Step 2: Convert to fraction form
    201,976.49/278,740.02 = 111,332.25/x
  3. Step 3: Cross multiply
    201,976.49x = 278,740.02 × 111,332.25
  4. Step 4: Simplify right side
    201,976.49x = 31,032,753,068.62
  5. Step 5: Solve for x
    x = 31,032,753,068.62/201,976.49
  6. Step 6: Final answer
    x = 153,645.38

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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.