Home / 239,201.28-330,085.71-131,769

Finding the Fourth Proportional to 239,201.28, 330,085.71 and 131,769

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Solution

The fourth proportional to 239,201.28, 330,085.71 and 131,769 is: 181,834.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,201.28 : 330,085.71 = 131,769 : x
  2. Step 2: Convert to fraction form
    239,201.28/330,085.71 = 131,769/x
  3. Step 3: Cross multiply
    239,201.28x = 330,085.71 × 131,769
  4. Step 4: Simplify right side
    239,201.28x = 43,495,063,920.99
  5. Step 5: Solve for x
    x = 43,495,063,920.99/239,201.28
  6. Step 6: Final answer
    x = 181,834.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.