Home / 156,441.21-215,827.81-102,057.31

Finding the Fourth Proportional to 156,441.21, 215,827.81 and 102,057.31

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Solution

The fourth proportional to 156,441.21, 215,827.81 and 102,057.31 is: 140,799.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,441.21 : 215,827.81 = 102,057.31 : x
  2. Step 2: Convert to fraction form
    156,441.21/215,827.81 = 102,057.31/x
  3. Step 3: Cross multiply
    156,441.21x = 215,827.81 × 102,057.31
  4. Step 4: Simplify right side
    156,441.21x = 22,026,806,300.51
  5. Step 5: Solve for x
    x = 22,026,806,300.51/156,441.21
  6. Step 6: Final answer
    x = 140,799.26

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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.