Home / 102,231,138.61-141,078,408.64-55,821,062.17

Finding the Fourth Proportional to 102,231,138.61, 141,078,408.64 and 55,821,062.17

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Solution

The fourth proportional to 102,231,138.61, 141,078,408.64 and 55,821,062.17 is: 77,032,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,231,138.61 : 141,078,408.64 = 55,821,062.17 : x
  2. Step 2: Convert to fraction form
    102,231,138.61/141,078,408.64 = 55,821,062.17/x
  3. Step 3: Cross multiply
    102,231,138.61x = 141,078,408.64 × 55,821,062.17
  4. Step 4: Simplify right side
    102,231,138.61x = 7,875,146,619,538,105
  5. Step 5: Solve for x
    x = 7,875,146,619,538,105/102,231,138.61
  6. Step 6: Final answer
    x = 77,032,758.58

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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.