Home / 156,930.03-235,453.37-72,730.53

Finding the Fourth Proportional to 156,930.03, 235,453.37 and 72,730.53

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Solution

The fourth proportional to 156,930.03, 235,453.37 and 72,730.53 is: 109,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.03 : 235,453.37 = 72,730.53 : x
  2. Step 2: Convert to fraction form
    156,930.03/235,453.37 = 72,730.53/x
  3. Step 3: Cross multiply
    156,930.03x = 235,453.37 × 72,730.53
  4. Step 4: Simplify right side
    156,930.03x = 17,124,648,026.73
  5. Step 5: Solve for x
    x = 17,124,648,026.73/156,930.03
  6. Step 6: Final answer
    x = 109,122.82

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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.