Home / 149,985.92-207,150.74-102,156.32

Finding the Fourth Proportional to 149,985.92, 207,150.74 and 102,156.32

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Solution

The fourth proportional to 149,985.92, 207,150.74 and 102,156.32 is: 141,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,985.92 : 207,150.74 = 102,156.32 : x
  2. Step 2: Convert to fraction form
    149,985.92/207,150.74 = 102,156.32/x
  3. Step 3: Cross multiply
    149,985.92x = 207,150.74 × 102,156.32
  4. Step 4: Simplify right side
    149,985.92x = 21,161,757,283.68
  5. Step 5: Solve for x
    x = 21,161,757,283.68/149,985.92
  6. Step 6: Final answer
    x = 141,091.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.