Home / 120,488.64-180,794.93-57,380.33

Finding the Fourth Proportional to 120,488.64, 180,794.93 and 57,380.33

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Solution

The fourth proportional to 120,488.64, 180,794.93 and 57,380.33 is: 86,100.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,488.64 : 180,794.93 = 57,380.33 : x
  2. Step 2: Convert to fraction form
    120,488.64/180,794.93 = 57,380.33/x
  3. Step 3: Cross multiply
    120,488.64x = 180,794.93 × 57,380.33
  4. Step 4: Simplify right side
    120,488.64x = 10,374,071,554.85
  5. Step 5: Solve for x
    x = 10,374,071,554.85/120,488.64
  6. Step 6: Final answer
    x = 86,100.00

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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.