Home / 113,979.45-171,018.38-61,378.46

Finding the Fourth Proportional to 113,979.45, 171,018.38 and 61,378.46

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Solution

The fourth proportional to 113,979.45, 171,018.38 and 61,378.46 is: 92,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,979.45 : 171,018.38 = 61,378.46 : x
  2. Step 2: Convert to fraction form
    113,979.45/171,018.38 = 61,378.46/x
  3. Step 3: Cross multiply
    113,979.45x = 171,018.38 × 61,378.46
  4. Step 4: Simplify right side
    113,979.45x = 10,496,843,634.11
  5. Step 5: Solve for x
    x = 10,496,843,634.11/113,979.45
  6. Step 6: Final answer
    x = 92,094.18

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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.