Home / 147,389.37-221,130.81-52,617.48

Finding the Fourth Proportional to 147,389.37, 221,130.81 and 52,617.48

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Solution

The fourth proportional to 147,389.37, 221,130.81 and 52,617.48 is: 78,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,389.37 : 221,130.81 = 52,617.48 : x
  2. Step 2: Convert to fraction form
    147,389.37/221,130.81 = 52,617.48/x
  3. Step 3: Cross multiply
    147,389.37x = 221,130.81 × 52,617.48
  4. Step 4: Simplify right side
    147,389.37x = 11,635,345,972.56
  5. Step 5: Solve for x
    x = 11,635,345,972.56/147,389.37
  6. Step 6: Final answer
    x = 78,942.91

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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.