Home / 109,912.96-151,680.32-59,612.80

Finding the Fourth Proportional to 109,912.96, 151,680.32 and 59,612.80

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Solution

The fourth proportional to 109,912.96, 151,680.32 and 59,612.80 is: 82,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,912.96 : 151,680.32 = 59,612.80 : x
  2. Step 2: Convert to fraction form
    109,912.96/151,680.32 = 59,612.80/x
  3. Step 3: Cross multiply
    109,912.96x = 151,680.32 × 59,612.80
  4. Step 4: Simplify right side
    109,912.96x = 9,042,088,580.10
  5. Step 5: Solve for x
    x = 9,042,088,580.10/109,912.96
  6. Step 6: Final answer
    x = 82,265.90

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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.