Home / 159,429.22-238,979.80-70,724.50

Finding the Fourth Proportional to 159,429.22, 238,979.80 and 70,724.50

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Solution

The fourth proportional to 159,429.22, 238,979.80 and 70,724.50 is: 106,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,429.22 : 238,979.80 = 70,724.50 : x
  2. Step 2: Convert to fraction form
    159,429.22/238,979.80 = 70,724.50/x
  3. Step 3: Cross multiply
    159,429.22x = 238,979.80 × 70,724.50
  4. Step 4: Simplify right side
    159,429.22x = 16,901,726,865.10
  5. Step 5: Solve for x
    x = 16,901,726,865.10/159,429.22
  6. Step 6: Final answer
    x = 106,013.98

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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.