Home / 120,924.90-180,998.55-64,623.96

Finding the Fourth Proportional to 120,924.90, 180,998.55 and 64,623.96

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Solution

The fourth proportional to 120,924.90, 180,998.55 and 64,623.96 is: 96,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,924.90 : 180,998.55 = 64,623.96 : x
  2. Step 2: Convert to fraction form
    120,924.90/180,998.55 = 64,623.96/x
  3. Step 3: Cross multiply
    120,924.90x = 180,998.55 × 64,623.96
  4. Step 4: Simplify right side
    120,924.90x = 11,696,843,055.26
  5. Step 5: Solve for x
    x = 11,696,843,055.26/120,924.90
  6. Step 6: Final answer
    x = 96,728.16

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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.