Home / 109,989.38-151,785.35-59,688.38

Finding the Fourth Proportional to 109,989.38, 151,785.35 and 59,688.38

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Solution

The fourth proportional to 109,989.38, 151,785.35 and 59,688.38 is: 82,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,989.38 : 151,785.35 = 59,688.38 : x
  2. Step 2: Convert to fraction form
    109,989.38/151,785.35 = 59,688.38/x
  3. Step 3: Cross multiply
    109,989.38x = 151,785.35 × 59,688.38
  4. Step 4: Simplify right side
    109,989.38x = 9,059,820,591.86
  5. Step 5: Solve for x
    x = 9,059,820,591.86/109,989.38
  6. Step 6: Final answer
    x = 82,369.96

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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.