Home / 219,776.54-303,330.44-129,132.47

Finding the Fourth Proportional to 219,776.54, 303,330.44 and 129,132.47

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Solution

The fourth proportional to 219,776.54, 303,330.44 and 129,132.47 is: 178,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,776.54 : 303,330.44 = 129,132.47 : x
  2. Step 2: Convert to fraction form
    219,776.54/303,330.44 = 129,132.47/x
  3. Step 3: Cross multiply
    219,776.54x = 303,330.44 × 129,132.47
  4. Step 4: Simplify right side
    219,776.54x = 39,169,810,024.54
  5. Step 5: Solve for x
    x = 39,169,810,024.54/219,776.54
  6. Step 6: Final answer
    x = 178,225.62

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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.