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Finding the Fourth Proportional to 156,283.96, 215,530.14 and 102,548.56

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Solution

The fourth proportional to 156,283.96, 215,530.14 and 102,548.56 is: 141,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,283.96 : 215,530.14 = 102,548.56 : x
  2. Step 2: Convert to fraction form
    156,283.96/215,530.14 = 102,548.56/x
  3. Step 3: Cross multiply
    156,283.96x = 215,530.14 × 102,548.56
  4. Step 4: Simplify right side
    156,283.96x = 22,102,304,954.77
  5. Step 5: Solve for x
    x = 22,102,304,954.77/156,283.96
  6. Step 6: Final answer
    x = 141,424.02

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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.