Home / 185,173.02-255,538.53-100,290.42

Finding the Fourth Proportional to 185,173.02, 255,538.53 and 100,290.42

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Solution

The fourth proportional to 185,173.02, 255,538.53 and 100,290.42 is: 138,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,173.02 : 255,538.53 = 100,290.42 : x
  2. Step 2: Convert to fraction form
    185,173.02/255,538.53 = 100,290.42/x
  3. Step 3: Cross multiply
    185,173.02x = 255,538.53 × 100,290.42
  4. Step 4: Simplify right side
    185,173.02x = 25,628,066,499.88
  5. Step 5: Solve for x
    x = 25,628,066,499.88/185,173.02
  6. Step 6: Final answer
    x = 138,400.65

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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.