Home / 216,428.77-298,671.08-120,935.55

Finding the Fourth Proportional to 216,428.77, 298,671.08 and 120,935.55

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Solution

The fourth proportional to 216,428.77, 298,671.08 and 120,935.55 is: 166,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,428.77 : 298,671.08 = 120,935.55 : x
  2. Step 2: Convert to fraction form
    216,428.77/298,671.08 = 120,935.55/x
  3. Step 3: Cross multiply
    216,428.77x = 298,671.08 × 120,935.55
  4. Step 4: Simplify right side
    216,428.77x = 36,119,951,328.89
  5. Step 5: Solve for x
    x = 36,119,951,328.89/216,428.77
  6. Step 6: Final answer
    x = 166,890.71

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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.