Home / 166,071.67-229,178.77-90,620.17

Finding the Fourth Proportional to 166,071.67, 229,178.77 and 90,620.17

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Solution

The fourth proportional to 166,071.67, 229,178.77 and 90,620.17 is: 125,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,071.67 : 229,178.77 = 90,620.17 : x
  2. Step 2: Convert to fraction form
    166,071.67/229,178.77 = 90,620.17/x
  3. Step 3: Cross multiply
    166,071.67x = 229,178.77 × 90,620.17
  4. Step 4: Simplify right side
    166,071.67x = 20,768,218,298.29
  5. Step 5: Solve for x
    x = 20,768,218,298.29/166,071.67
  6. Step 6: Final answer
    x = 125,055.76

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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.