Home / 109,858.20-151,581.96-64,543.56

Finding the Fourth Proportional to 109,858.20, 151,581.96 and 64,543.56

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Solution

The fourth proportional to 109,858.20, 151,581.96 and 64,543.56 is: 89,056.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,858.20 : 151,581.96 = 64,543.56 : x
  2. Step 2: Convert to fraction form
    109,858.20/151,581.96 = 64,543.56/x
  3. Step 3: Cross multiply
    109,858.20x = 151,581.96 × 64,543.56
  4. Step 4: Simplify right side
    109,858.20x = 9,783,639,330.18
  5. Step 5: Solve for x
    x = 9,783,639,330.18/109,858.20
  6. Step 6: Final answer
    x = 89,056.98

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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.