Home / 156,987.70-235,407.35-57,078.26

Finding the Fourth Proportional to 156,987.70, 235,407.35 and 57,078.26

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Solution

The fourth proportional to 156,987.70, 235,407.35 and 57,078.26 is: 85,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.70 : 235,407.35 = 57,078.26 : x
  2. Step 2: Convert to fraction form
    156,987.70/235,407.35 = 57,078.26/x
  3. Step 3: Cross multiply
    156,987.70x = 235,407.35 × 57,078.26
  4. Step 4: Simplify right side
    156,987.70x = 13,436,641,929.21
  5. Step 5: Solve for x
    x = 13,436,641,929.21/156,987.70
  6. Step 6: Final answer
    x = 85,590.41

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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.