Home / 149,977.92-207,139.68-102,148.32

Finding the Fourth Proportional to 149,977.92, 207,139.68 and 102,148.32

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Solution

The fourth proportional to 149,977.92, 207,139.68 and 102,148.32 is: 141,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,977.92 : 207,139.68 = 102,148.32 : x
  2. Step 2: Convert to fraction form
    149,977.92/207,139.68 = 102,148.32/x
  3. Step 3: Cross multiply
    149,977.92x = 207,139.68 × 102,148.32
  4. Step 4: Simplify right side
    149,977.92x = 21,158,970,317.34
  5. Step 5: Solve for x
    x = 21,158,970,317.34/149,977.92
  6. Step 6: Final answer
    x = 141,080.57

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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.