Home / 166,869.43-230,278.45-90,386.76

Finding the Fourth Proportional to 166,869.43, 230,278.45 and 90,386.76

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Solution

The fourth proportional to 166,869.43, 230,278.45 and 90,386.76 is: 124,732.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,869.43 : 230,278.45 = 90,386.76 : x
  2. Step 2: Convert to fraction form
    166,869.43/230,278.45 = 90,386.76/x
  3. Step 3: Cross multiply
    166,869.43x = 230,278.45 × 90,386.76
  4. Step 4: Simplify right side
    166,869.43x = 20,814,122,993.32
  5. Step 5: Solve for x
    x = 20,814,122,993.32/166,869.43
  6. Step 6: Final answer
    x = 124,732.99

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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.