Home / 190,030.65-284,867.78-71,781.45

Finding the Fourth Proportional to 190,030.65, 284,867.78 and 71,781.45

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Solution

The fourth proportional to 190,030.65, 284,867.78 and 71,781.45 is: 107,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,030.65 : 284,867.78 = 71,781.45 : x
  2. Step 2: Convert to fraction form
    190,030.65/284,867.78 = 71,781.45/x
  3. Step 3: Cross multiply
    190,030.65x = 284,867.78 × 71,781.45
  4. Step 4: Simplify right side
    190,030.65x = 20,448,221,947.77
  5. Step 5: Solve for x
    x = 20,448,221,947.77/190,030.65
  6. Step 6: Final answer
    x = 107,604.86

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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.