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Finding the Fourth Proportional to 187,079.60, 280,619.40 and 108,153.20

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Solution

The fourth proportional to 187,079.60, 280,619.40 and 108,153.20 is: 162,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,079.60 : 280,619.40 = 108,153.20 : x
  2. Step 2: Convert to fraction form
    187,079.60/280,619.40 = 108,153.20/x
  3. Step 3: Cross multiply
    187,079.60x = 280,619.40 × 108,153.20
  4. Step 4: Simplify right side
    187,079.60x = 30,349,886,092.08
  5. Step 5: Solve for x
    x = 30,349,886,092.08/187,079.60
  6. Step 6: Final answer
    x = 162,229.80

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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.