Home / 185,590.39-256,115.44-100,707.45

Finding the Fourth Proportional to 185,590.39, 256,115.44 and 100,707.45

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Solution

The fourth proportional to 185,590.39, 256,115.44 and 100,707.45 is: 138,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,590.39 : 256,115.44 = 100,707.45 : x
  2. Step 2: Convert to fraction form
    185,590.39/256,115.44 = 100,707.45/x
  3. Step 3: Cross multiply
    185,590.39x = 256,115.44 × 100,707.45
  4. Step 4: Simplify right side
    185,590.39x = 25,792,732,364.49
  5. Step 5: Solve for x
    x = 25,792,732,364.49/185,590.39
  6. Step 6: Final answer
    x = 138,976.66

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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.