Home / 185,403.76-255,858.96-100,521.04

Finding the Fourth Proportional to 185,403.76, 255,858.96 and 100,521.04

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Solution

The fourth proportional to 185,403.76, 255,858.96 and 100,521.04 is: 138,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,403.76 : 255,858.96 = 100,521.04 : x
  2. Step 2: Convert to fraction form
    185,403.76/255,858.96 = 100,521.04/x
  3. Step 3: Cross multiply
    185,403.76x = 255,858.96 × 100,521.04
  4. Step 4: Simplify right side
    185,403.76x = 25,719,208,752.52
  5. Step 5: Solve for x
    x = 25,719,208,752.52/185,403.76
  6. Step 6: Final answer
    x = 138,720.00

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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.