Home / 156,744.48-216,305.52-85,125.60

Finding the Fourth Proportional to 156,744.48, 216,305.52 and 85,125.60

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Solution

The fourth proportional to 156,744.48, 216,305.52 and 85,125.60 is: 117,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,744.48 : 216,305.52 = 85,125.60 : x
  2. Step 2: Convert to fraction form
    156,744.48/216,305.52 = 85,125.60/x
  3. Step 3: Cross multiply
    156,744.48x = 216,305.52 × 85,125.60
  4. Step 4: Simplify right side
    156,744.48x = 18,413,137,173.31
  5. Step 5: Solve for x
    x = 18,413,137,173.31/156,744.48
  6. Step 6: Final answer
    x = 117,472.32

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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.