Home / 185,242.49-255,634.89-100,359.55

Finding the Fourth Proportional to 185,242.49, 255,634.89 and 100,359.55

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Solution

The fourth proportional to 185,242.49, 255,634.89 and 100,359.55 is: 138,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,242.49 : 255,634.89 = 100,359.55 : x
  2. Step 2: Convert to fraction form
    185,242.49/255,634.89 = 100,359.55/x
  3. Step 3: Cross multiply
    185,242.49x = 255,634.89 × 100,359.55
  4. Step 4: Simplify right side
    185,242.49x = 25,655,402,467.89
  5. Step 5: Solve for x
    x = 25,655,402,467.89/185,242.49
  6. Step 6: Final answer
    x = 138,496.32

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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.