Home / 198,272.07-297,345.15-65,121.39

Finding the Fourth Proportional to 198,272.07, 297,345.15 and 65,121.39

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Solution

The fourth proportional to 198,272.07, 297,345.15 and 65,121.39 is: 97,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,272.07 : 297,345.15 = 65,121.39 : x
  2. Step 2: Convert to fraction form
    198,272.07/297,345.15 = 65,121.39/x
  3. Step 3: Cross multiply
    198,272.07x = 297,345.15 × 65,121.39
  4. Step 4: Simplify right side
    198,272.07x = 19,363,529,477.76
  5. Step 5: Solve for x
    x = 19,363,529,477.76/198,272.07
  6. Step 6: Final answer
    x = 97,661.41

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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.