Home / 212,120.55-292,709.01-124,891.86

Finding the Fourth Proportional to 212,120.55, 292,709.01 and 124,891.86

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Solution

The fourth proportional to 212,120.55, 292,709.01 and 124,891.86 is: 172,340.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,120.55 : 292,709.01 = 124,891.86 : x
  2. Step 2: Convert to fraction form
    212,120.55/292,709.01 = 124,891.86/x
  3. Step 3: Cross multiply
    212,120.55x = 292,709.01 × 124,891.86
  4. Step 4: Simplify right side
    212,120.55x = 36,556,972,697.66
  5. Step 5: Solve for x
    x = 36,556,972,697.66/212,120.55
  6. Step 6: Final answer
    x = 172,340.55

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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.