Home / 156,938.90-235,408.35-137,255.90

Finding the Fourth Proportional to 156,938.90, 235,408.35 and 137,255.90

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Solution

The fourth proportional to 156,938.90, 235,408.35 and 137,255.90 is: 205,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,938.90 : 235,408.35 = 137,255.90 : x
  2. Step 2: Convert to fraction form
    156,938.90/235,408.35 = 137,255.90/x
  3. Step 3: Cross multiply
    156,938.90x = 235,408.35 × 137,255.90
  4. Step 4: Simplify right side
    156,938.90x = 32,311,184,946.77
  5. Step 5: Solve for x
    x = 32,311,184,946.77/156,938.90
  6. Step 6: Final answer
    x = 205,883.85

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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.