Home / 187,158.18-280,617.58-111,236.47

Finding the Fourth Proportional to 187,158.18, 280,617.58 and 111,236.47

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Solution

The fourth proportional to 187,158.18, 280,617.58 and 111,236.47 is: 166,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,158.18 : 280,617.58 = 111,236.47 : x
  2. Step 2: Convert to fraction form
    187,158.18/280,617.58 = 111,236.47/x
  3. Step 3: Cross multiply
    187,158.18x = 280,617.58 × 111,236.47
  4. Step 4: Simplify right side
    187,158.18x = 31,214,909,276.88
  5. Step 5: Solve for x
    x = 31,214,909,276.88/187,158.18
  6. Step 6: Final answer
    x = 166,783.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.