Home / 96,705.36-144,396.20-86,645.16

Finding the Fourth Proportional to 96,705.36, 144,396.20 and 86,645.16

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Solution

The fourth proportional to 96,705.36, 144,396.20 and 86,645.16 is: 129,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,705.36 : 144,396.20 = 86,645.16 : x
  2. Step 2: Convert to fraction form
    96,705.36/144,396.20 = 86,645.16/x
  3. Step 3: Cross multiply
    96,705.36x = 144,396.20 × 86,645.16
  4. Step 4: Simplify right side
    96,705.36x = 12,511,232,069.00
  5. Step 5: Solve for x
    x = 12,511,232,069.00/96,705.36
  6. Step 6: Final answer
    x = 129,374.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.