Home / 212,278.53-292,986.26-121,695.33

Finding the Fourth Proportional to 212,278.53, 292,986.26 and 121,695.33

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Solution

The fourth proportional to 212,278.53, 292,986.26 and 121,695.33 is: 167,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,278.53 : 292,986.26 = 121,695.33 : x
  2. Step 2: Convert to fraction form
    212,278.53/292,986.26 = 121,695.33/x
  3. Step 3: Cross multiply
    212,278.53x = 292,986.26 × 121,695.33
  4. Step 4: Simplify right side
    212,278.53x = 35,655,058,987.69
  5. Step 5: Solve for x
    x = 35,655,058,987.69/212,278.53
  6. Step 6: Final answer
    x = 167,963.57

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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.