Home / 121,009.17-166,979.87-67,285.52

Finding the Fourth Proportional to 121,009.17, 166,979.87 and 67,285.52

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Solution

The fourth proportional to 121,009.17, 166,979.87 and 67,285.52 is: 92,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,009.17 : 166,979.87 = 67,285.52 : x
  2. Step 2: Convert to fraction form
    121,009.17/166,979.87 = 67,285.52/x
  3. Step 3: Cross multiply
    121,009.17x = 166,979.87 × 67,285.52
  4. Step 4: Simplify right side
    121,009.17x = 11,235,326,211.16
  5. Step 5: Solve for x
    x = 11,235,326,211.16/121,009.17
  6. Step 6: Final answer
    x = 92,846.90

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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.