Home / 156,236.82-215,637.12-102,520.06

Finding the Fourth Proportional to 156,236.82, 215,637.12 and 102,520.06

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Solution

The fourth proportional to 156,236.82, 215,637.12 and 102,520.06 is: 141,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,236.82 : 215,637.12 = 102,520.06 : x
  2. Step 2: Convert to fraction form
    156,236.82/215,637.12 = 102,520.06/x
  3. Step 3: Cross multiply
    156,236.82x = 215,637.12 × 102,520.06
  4. Step 4: Simplify right side
    156,236.82x = 22,107,130,480.63
  5. Step 5: Solve for x
    x = 22,107,130,480.63/156,236.82
  6. Step 6: Final answer
    x = 141,497.57

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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.