Home / 190,444.28-285,759.91-76,587.48

Finding the Fourth Proportional to 190,444.28, 285,759.91 and 76,587.48

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Solution

The fourth proportional to 190,444.28, 285,759.91 and 76,587.48 is: 114,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,444.28 : 285,759.91 = 76,587.48 : x
  2. Step 2: Convert to fraction form
    190,444.28/285,759.91 = 76,587.48/x
  3. Step 3: Cross multiply
    190,444.28x = 285,759.91 × 76,587.48
  4. Step 4: Simplify right side
    190,444.28x = 21,885,631,487.66
  5. Step 5: Solve for x
    x = 21,885,631,487.66/190,444.28
  6. Step 6: Final answer
    x = 114,918.82

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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.