Home / 216,616.58-298,931.92-121,123.35

Finding the Fourth Proportional to 216,616.58, 298,931.92 and 121,123.35

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Solution

The fourth proportional to 216,616.58, 298,931.92 and 121,123.35 is: 167,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,616.58 : 298,931.92 = 121,123.35 : x
  2. Step 2: Convert to fraction form
    216,616.58/298,931.92 = 121,123.35/x
  3. Step 3: Cross multiply
    216,616.58x = 298,931.92 × 121,123.35
  4. Step 4: Simplify right side
    216,616.58x = 36,207,635,269.52
  5. Step 5: Solve for x
    x = 36,207,635,269.52/216,616.58
  6. Step 6: Final answer
    x = 167,150.80

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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.