Home / 156,925.20-235,387.80-145,405.20

Finding the Fourth Proportional to 156,925.20, 235,387.80 and 145,405.20

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Solution

The fourth proportional to 156,925.20, 235,387.80 and 145,405.20 is: 218,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,925.20 : 235,387.80 = 145,405.20 : x
  2. Step 2: Convert to fraction form
    156,925.20/235,387.80 = 145,405.20/x
  3. Step 3: Cross multiply
    156,925.20x = 235,387.80 × 145,405.20
  4. Step 4: Simplify right side
    156,925.20x = 34,226,610,136.56
  5. Step 5: Solve for x
    x = 34,226,610,136.56/156,925.20
  6. Step 6: Final answer
    x = 218,107.80

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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.