Home / 219,645.02-329,342.70-86,453.10

Finding the Fourth Proportional to 219,645.02, 329,342.70 and 86,453.10

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Solution

The fourth proportional to 219,645.02, 329,342.70 and 86,453.10 is: 129,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,645.02 : 329,342.70 = 86,453.10 : x
  2. Step 2: Convert to fraction form
    219,645.02/329,342.70 = 86,453.10/x
  3. Step 3: Cross multiply
    219,645.02x = 329,342.70 × 86,453.10
  4. Step 4: Simplify right side
    219,645.02x = 28,472,697,377.37
  5. Step 5: Solve for x
    x = 28,472,697,377.37/219,645.02
  6. Step 6: Final answer
    x = 129,630.52

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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.