Home / 109,631.04-151,293.60-67,212.96

Finding the Fourth Proportional to 109,631.04, 151,293.60 and 67,212.96

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Solution

The fourth proportional to 109,631.04, 151,293.60 and 67,212.96 is: 92,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,631.04 : 151,293.60 = 67,212.96 : x
  2. Step 2: Convert to fraction form
    109,631.04/151,293.60 = 67,212.96/x
  3. Step 3: Cross multiply
    109,631.04x = 151,293.60 × 67,212.96
  4. Step 4: Simplify right side
    109,631.04x = 10,168,890,685.06
  5. Step 5: Solve for x
    x = 10,168,890,685.06/109,631.04
  6. Step 6: Final answer
    x = 92,755.58

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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.