Home / 156,735.30-235,102.95-38,407.80

Finding the Fourth Proportional to 156,735.30, 235,102.95 and 38,407.80

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Solution

The fourth proportional to 156,735.30, 235,102.95 and 38,407.80 is: 57,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,735.30 : 235,102.95 = 38,407.80 : x
  2. Step 2: Convert to fraction form
    156,735.30/235,102.95 = 38,407.80/x
  3. Step 3: Cross multiply
    156,735.30x = 235,102.95 × 38,407.80
  4. Step 4: Simplify right side
    156,735.30x = 9,029,787,083.01
  5. Step 5: Solve for x
    x = 9,029,787,083.01/156,735.30
  6. Step 6: Final answer
    x = 57,611.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.