Home / 211,911.48-292,366.52-120,018.20

Finding the Fourth Proportional to 211,911.48, 292,366.52 and 120,018.20

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Solution

The fourth proportional to 211,911.48, 292,366.52 and 120,018.20 is: 165,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,911.48 : 292,366.52 = 120,018.20 : x
  2. Step 2: Convert to fraction form
    211,911.48/292,366.52 = 120,018.20/x
  3. Step 3: Cross multiply
    211,911.48x = 292,366.52 × 120,018.20
  4. Step 4: Simplify right side
    211,911.48x = 35,089,303,470.66
  5. Step 5: Solve for x
    x = 35,089,303,470.66/211,911.48
  6. Step 6: Final answer
    x = 165,584.72

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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.