Home / 156,977.52-216,627.82-85,357.52

Finding the Fourth Proportional to 156,977.52, 216,627.82 and 85,357.52

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Solution

The fourth proportional to 156,977.52, 216,627.82 and 85,357.52 is: 117,792.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,977.52 : 216,627.82 = 85,357.52 : x
  2. Step 2: Convert to fraction form
    156,977.52/216,627.82 = 85,357.52/x
  3. Step 3: Cross multiply
    156,977.52x = 216,627.82 × 85,357.52
  4. Step 4: Simplify right side
    156,977.52x = 18,490,813,603.29
  5. Step 5: Solve for x
    x = 18,490,813,603.29/156,977.52
  6. Step 6: Final answer
    x = 117,792.75

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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.