Home / 219,548.10-329,322.15-86,355.55

Finding the Fourth Proportional to 219,548.10, 329,322.15 and 86,355.55

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Solution

The fourth proportional to 219,548.10, 329,322.15 and 86,355.55 is: 129,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,548.10 : 329,322.15 = 86,355.55 : x
  2. Step 2: Convert to fraction form
    219,548.10/329,322.15 = 86,355.55/x
  3. Step 3: Cross multiply
    219,548.10x = 329,322.15 × 86,355.55
  4. Step 4: Simplify right side
    219,548.10x = 28,438,794,567.13
  5. Step 5: Solve for x
    x = 28,438,794,567.13/219,548.10
  6. Step 6: Final answer
    x = 129,533.32

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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.