Home / 185,013.99-255,319.56-100,131.12

Finding the Fourth Proportional to 185,013.99, 255,319.56 and 100,131.12

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Solution

The fourth proportional to 185,013.99, 255,319.56 and 100,131.12 is: 138,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,013.99 : 255,319.56 = 100,131.12 : x
  2. Step 2: Convert to fraction form
    185,013.99/255,319.56 = 100,131.12/x
  3. Step 3: Cross multiply
    185,013.99x = 255,319.56 × 100,131.12
  4. Step 4: Simplify right side
    185,013.99x = 25,565,433,500.71
  5. Step 5: Solve for x
    x = 25,565,433,500.71/185,013.99
  6. Step 6: Final answer
    x = 138,181.08

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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.