Home / 120,684.23-166,530.72-66,971.51

Finding the Fourth Proportional to 120,684.23, 166,530.72 and 66,971.51

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Solution

The fourth proportional to 120,684.23, 166,530.72 and 66,971.51 is: 92,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,684.23 : 166,530.72 = 66,971.51 : x
  2. Step 2: Convert to fraction form
    120,684.23/166,530.72 = 66,971.51/x
  3. Step 3: Cross multiply
    120,684.23x = 166,530.72 × 66,971.51
  4. Step 4: Simplify right side
    120,684.23x = 11,152,812,612.28
  5. Step 5: Solve for x
    x = 11,152,812,612.28/120,684.23
  6. Step 6: Final answer
    x = 92,413.18

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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.