Home / 219,945.12-329,917.56-79,703.52

Finding the Fourth Proportional to 219,945.12, 329,917.56 and 79,703.52

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Solution

The fourth proportional to 219,945.12, 329,917.56 and 79,703.52 is: 119,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,945.12 : 329,917.56 = 79,703.52 : x
  2. Step 2: Convert to fraction form
    219,945.12/329,917.56 = 79,703.52/x
  3. Step 3: Cross multiply
    219,945.12x = 329,917.56 × 79,703.52
  4. Step 4: Simplify right side
    219,945.12x = 26,295,590,841.81
  5. Step 5: Solve for x
    x = 26,295,590,841.81/219,945.12
  6. Step 6: Final answer
    x = 119,555.24

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1.5x scale

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.