Home / 139,122.54-208,522.62-64,085.22

Finding the Fourth Proportional to 139,122.54, 208,522.62 and 64,085.22

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Solution

The fourth proportional to 139,122.54, 208,522.62 and 64,085.22 is: 96,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,122.54 : 208,522.62 = 64,085.22 : x
  2. Step 2: Convert to fraction form
    139,122.54/208,522.62 = 64,085.22/x
  3. Step 3: Cross multiply
    139,122.54x = 208,522.62 × 64,085.22
  4. Step 4: Simplify right side
    139,122.54x = 13,363,217,977.68
  5. Step 5: Solve for x
    x = 13,363,217,977.68/139,122.54
  6. Step 6: Final answer
    x = 96,053.58

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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.