Home / 120,708.74-166,462.34-72,302.92

Finding the Fourth Proportional to 120,708.74, 166,462.34 and 72,302.92

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Solution

The fourth proportional to 120,708.74, 166,462.34 and 72,302.92 is: 99,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,708.74 : 166,462.34 = 72,302.92 : x
  2. Step 2: Convert to fraction form
    120,708.74/166,462.34 = 72,302.92/x
  3. Step 3: Cross multiply
    120,708.74x = 166,462.34 × 72,302.92
  4. Step 4: Simplify right side
    120,708.74x = 12,035,713,252.03
  5. Step 5: Solve for x
    x = 12,035,713,252.03/120,708.74
  6. Step 6: Final answer
    x = 99,708.71

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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.