Home / 219,961.60-329,953.20-114,985.60

Finding the Fourth Proportional to 219,961.60, 329,953.20 and 114,985.60

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Solution

The fourth proportional to 219,961.60, 329,953.20 and 114,985.60 is: 172,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,961.60 : 329,953.20 = 114,985.60 : x
  2. Step 2: Convert to fraction form
    219,961.60/329,953.20 = 114,985.60/x
  3. Step 3: Cross multiply
    219,961.60x = 329,953.20 × 114,985.60
  4. Step 4: Simplify right side
    219,961.60x = 37,939,866,673.92
  5. Step 5: Solve for x
    x = 37,939,866,673.92/219,961.60
  6. Step 6: Final answer
    x = 172,484.05

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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.