Home / 124,905.78-187,356.93-30,135.17

Finding the Fourth Proportional to 124,905.78, 187,356.93 and 30,135.17

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Solution

The fourth proportional to 124,905.78, 187,356.93 and 30,135.17 is: 45,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,905.78 : 187,356.93 = 30,135.17 : x
  2. Step 2: Convert to fraction form
    124,905.78/187,356.93 = 30,135.17/x
  3. Step 3: Cross multiply
    124,905.78x = 187,356.93 × 30,135.17
  4. Step 4: Simplify right side
    124,905.78x = 5,646,033,461.12
  5. Step 5: Solve for x
    x = 5,646,033,461.12/124,905.78
  6. Step 6: Final answer
    x = 45,202.34

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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.