Home / 185,085.27-255,417.75-100,202.31

Finding the Fourth Proportional to 185,085.27, 255,417.75 and 100,202.31

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Solution

The fourth proportional to 185,085.27, 255,417.75 and 100,202.31 is: 138,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,085.27 : 255,417.75 = 100,202.31 : x
  2. Step 2: Convert to fraction form
    185,085.27/255,417.75 = 100,202.31/x
  3. Step 3: Cross multiply
    185,085.27x = 255,417.75 × 100,202.31
  4. Step 4: Simplify right side
    185,085.27x = 25,593,448,565.00
  5. Step 5: Solve for x
    x = 25,593,448,565.00/185,085.27
  6. Step 6: Final answer
    x = 138,279.23

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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.