Home / 216,637.42-298,959.65-121,144.34

Finding the Fourth Proportional to 216,637.42, 298,959.65 and 121,144.34

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Solution

The fourth proportional to 216,637.42, 298,959.65 and 121,144.34 is: 167,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,637.42 : 298,959.65 = 121,144.34 : x
  2. Step 2: Convert to fraction form
    216,637.42/298,959.65 = 121,144.34/x
  3. Step 3: Cross multiply
    216,637.42x = 298,959.65 × 121,144.34
  4. Step 4: Simplify right side
    216,637.42x = 36,217,269,485.88
  5. Step 5: Solve for x
    x = 36,217,269,485.88/216,637.42
  6. Step 6: Final answer
    x = 167,179.20

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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.