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Finding the Fourth Proportional to 156,224.61, 215,588.84 and 84,602.97

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Solution

The fourth proportional to 156,224.61, 215,588.84 and 84,602.97 is: 116,751.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,224.61 : 215,588.84 = 84,602.97 : x
  2. Step 2: Convert to fraction form
    156,224.61/215,588.84 = 84,602.97/x
  3. Step 3: Cross multiply
    156,224.61x = 215,588.84 × 84,602.97
  4. Step 4: Simplify right side
    156,224.61x = 18,239,455,739.84
  5. Step 5: Solve for x
    x = 18,239,455,739.84/156,224.61
  6. Step 6: Final answer
    x = 116,751.49

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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.