Home / 120,759.45-181,190.47-64,585

Finding the Fourth Proportional to 120,759.45, 181,190.47 and 64,585

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Solution

The fourth proportional to 120,759.45, 181,190.47 and 64,585 is: 96,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,759.45 : 181,190.47 = 64,585 : x
  2. Step 2: Convert to fraction form
    120,759.45/181,190.47 = 64,585/x
  3. Step 3: Cross multiply
    120,759.45x = 181,190.47 × 64,585
  4. Step 4: Simplify right side
    120,759.45x = 11,702,186,504.95
  5. Step 5: Solve for x
    x = 11,702,186,504.95/120,759.45
  6. Step 6: Final answer
    x = 96,904.93

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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.