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Finding the Fourth Proportional to 156,594.70, 216,101.25 and 84,974.72

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Solution

The fourth proportional to 156,594.70, 216,101.25 and 84,974.72 is: 117,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,594.70 : 216,101.25 = 84,974.72 : x
  2. Step 2: Convert to fraction form
    156,594.70/216,101.25 = 84,974.72/x
  3. Step 3: Cross multiply
    156,594.70x = 216,101.25 × 84,974.72
  4. Step 4: Simplify right side
    156,594.70x = 18,363,142,129.89
  5. Step 5: Solve for x
    x = 18,363,142,129.89/156,594.70
  6. Step 6: Final answer
    x = 117,265.42

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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.