Home / 156,221.11-215,641.74-102,523.51

Finding the Fourth Proportional to 156,221.11, 215,641.74 and 102,523.51

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Solution

The fourth proportional to 156,221.11, 215,641.74 and 102,523.51 is: 141,519.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,221.11 : 215,641.74 = 102,523.51 : x
  2. Step 2: Convert to fraction form
    156,221.11/215,641.74 = 102,523.51/x
  3. Step 3: Cross multiply
    156,221.11x = 215,641.74 × 102,523.51
  4. Step 4: Simplify right side
    156,221.11x = 22,108,348,087.31
  5. Step 5: Solve for x
    x = 22,108,348,087.31/156,221.11
  6. Step 6: Final answer
    x = 141,519.59

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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.