Home / 166,407.21-229,642.07-90,955.71

Finding the Fourth Proportional to 166,407.21, 229,642.07 and 90,955.71

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Solution

The fourth proportional to 166,407.21, 229,642.07 and 90,955.71 is: 125,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,407.21 : 229,642.07 = 90,955.71 : x
  2. Step 2: Convert to fraction form
    166,407.21/229,642.07 = 90,955.71/x
  3. Step 3: Cross multiply
    166,407.21x = 229,642.07 × 90,955.71
  4. Step 4: Simplify right side
    166,407.21x = 20,887,257,522.72
  5. Step 5: Solve for x
    x = 20,887,257,522.72/166,407.21
  6. Step 6: Final answer
    x = 125,518.95

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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.