Home / 212,186.82-292,821.38-121,550.71

Finding the Fourth Proportional to 212,186.82, 292,821.38 and 121,550.71

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Solution

The fourth proportional to 212,186.82, 292,821.38 and 121,550.71 is: 167,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,186.82 : 292,821.38 = 121,550.71 : x
  2. Step 2: Convert to fraction form
    212,186.82/292,821.38 = 121,550.71/x
  3. Step 3: Cross multiply
    212,186.82x = 292,821.38 × 121,550.71
  4. Step 4: Simplify right side
    212,186.82x = 35,592,646,642.18
  5. Step 5: Solve for x
    x = 35,592,646,642.18/212,186.82
  6. Step 6: Final answer
    x = 167,742.02

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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.