Home / 156,674.20-235,140.90-72,563.80

Finding the Fourth Proportional to 156,674.20, 235,140.90 and 72,563.80

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Solution

The fourth proportional to 156,674.20, 235,140.90 and 72,563.80 is: 108,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,674.20 : 235,140.90 = 72,563.80 : x
  2. Step 2: Convert to fraction form
    156,674.20/235,140.90 = 72,563.80/x
  3. Step 3: Cross multiply
    156,674.20x = 235,140.90 × 72,563.80
  4. Step 4: Simplify right side
    156,674.20x = 17,062,717,239.42
  5. Step 5: Solve for x
    x = 17,062,717,239.42/156,674.20
  6. Step 6: Final answer
    x = 108,905.72

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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.