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Finding the Fourth Proportional to 156,277.49, 215,663.49 and 84,657.33

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Solution

The fourth proportional to 156,277.49, 215,663.49 and 84,657.33 is: 116,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,277.49 : 215,663.49 = 84,657.33 : x
  2. Step 2: Convert to fraction form
    156,277.49/215,663.49 = 84,657.33/x
  3. Step 3: Cross multiply
    156,277.49x = 215,663.49 × 84,657.33
  4. Step 4: Simplify right side
    156,277.49x = 18,257,495,241.88
  5. Step 5: Solve for x
    x = 18,257,495,241.88/156,277.49
  6. Step 6: Final answer
    x = 116,827.42

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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.