Home / 211,603.05-292,018.32-116,115.78

Finding the Fourth Proportional to 211,603.05, 292,018.32 and 116,115.78

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Solution

The fourth proportional to 211,603.05, 292,018.32 and 116,115.78 is: 160,243.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,603.05 : 292,018.32 = 116,115.78 : x
  2. Step 2: Convert to fraction form
    211,603.05/292,018.32 = 116,115.78/x
  3. Step 3: Cross multiply
    211,603.05x = 292,018.32 × 116,115.78
  4. Step 4: Simplify right side
    211,603.05x = 33,907,935,001.09
  5. Step 5: Solve for x
    x = 33,907,935,001.09/211,603.05
  6. Step 6: Final answer
    x = 160,243.13

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1.5x scale

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.