Home / 190,720.29-285,969.20-57,560.61

Finding the Fourth Proportional to 190,720.29, 285,969.20 and 57,560.61

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Solution

The fourth proportional to 190,720.29, 285,969.20 and 57,560.61 is: 86,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,720.29 : 285,969.20 = 57,560.61 : x
  2. Step 2: Convert to fraction form
    190,720.29/285,969.20 = 57,560.61/x
  3. Step 3: Cross multiply
    190,720.29x = 285,969.20 × 57,560.61
  4. Step 4: Simplify right side
    190,720.29x = 16,460,561,305.41
  5. Step 5: Solve for x
    x = 16,460,561,305.41/190,720.29
  6. Step 6: Final answer
    x = 86,307.34

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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.