Home / 156,933.10-235,010.85-100,686.70

Finding the Fourth Proportional to 156,933.10, 235,010.85 and 100,686.70

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Solution

The fourth proportional to 156,933.10, 235,010.85 and 100,686.70 is: 150,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,933.10 : 235,010.85 = 100,686.70 : x
  2. Step 2: Convert to fraction form
    156,933.10/235,010.85 = 100,686.70/x
  3. Step 3: Cross multiply
    156,933.10x = 235,010.85 × 100,686.70
  4. Step 4: Simplify right side
    156,933.10x = 23,662,466,950.70
  5. Step 5: Solve for x
    x = 23,662,466,950.70/156,933.10
  6. Step 6: Final answer
    x = 150,780.60

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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.