Home / 216,543.20-298,824.13-121,058.78

Finding the Fourth Proportional to 216,543.20, 298,824.13 and 121,058.78

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Solution

The fourth proportional to 216,543.20, 298,824.13 and 121,058.78 is: 167,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,543.20 : 298,824.13 = 121,058.78 : x
  2. Step 2: Convert to fraction form
    216,543.20/298,824.13 = 121,058.78/x
  3. Step 3: Cross multiply
    216,543.20x = 298,824.13 × 121,058.78
  4. Step 4: Simplify right side
    216,543.20x = 36,175,284,612.36
  5. Step 5: Solve for x
    x = 36,175,284,612.36/216,543.20
  6. Step 6: Final answer
    x = 167,058.05

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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.