Home / 120,707.74-166,460.96-72,301.92

Finding the Fourth Proportional to 120,707.74, 166,460.96 and 72,301.92

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Solution

The fourth proportional to 120,707.74, 166,460.96 and 72,301.92 is: 99,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,707.74 : 166,460.96 = 72,301.92 : x
  2. Step 2: Convert to fraction form
    120,707.74/166,460.96 = 72,301.92/x
  3. Step 3: Cross multiply
    120,707.74x = 166,460.96 × 72,301.92
  4. Step 4: Simplify right side
    120,707.74x = 12,035,447,013.04
  5. Step 5: Solve for x
    x = 12,035,447,013.04/120,707.74
  6. Step 6: Final answer
    x = 99,707.33

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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.