Home / 185,142.64-255,497.66-100,259.80

Finding the Fourth Proportional to 185,142.64, 255,497.66 and 100,259.80

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Solution

The fourth proportional to 185,142.64, 255,497.66 and 100,259.80 is: 138,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,142.64 : 255,497.66 = 100,259.80 : x
  2. Step 2: Convert to fraction form
    185,142.64/255,497.66 = 100,259.80/x
  3. Step 3: Cross multiply
    185,142.64x = 255,497.66 × 100,259.80
  4. Step 4: Simplify right side
    185,142.64x = 25,616,144,292.07
  5. Step 5: Solve for x
    x = 25,616,144,292.07/185,142.64
  6. Step 6: Final answer
    x = 138,358.97

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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.