Home / 190,168.36-285,097.02-71,772.28

Finding the Fourth Proportional to 190,168.36, 285,097.02 and 71,772.28

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Solution

The fourth proportional to 190,168.36, 285,097.02 and 71,772.28 is: 107,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,168.36 : 285,097.02 = 71,772.28 : x
  2. Step 2: Convert to fraction form
    190,168.36/285,097.02 = 71,772.28/x
  3. Step 3: Cross multiply
    190,168.36x = 285,097.02 × 71,772.28
  4. Step 4: Simplify right side
    190,168.36x = 20,462,063,146.61
  5. Step 5: Solve for x
    x = 20,462,063,146.61/190,168.36
  6. Step 6: Final answer
    x = 107,599.72

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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.