Home / 158,857.56-238,234.50-70,107.48

Finding the Fourth Proportional to 158,857.56, 238,234.50 and 70,107.48

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Solution

The fourth proportional to 158,857.56, 238,234.50 and 70,107.48 is: 105,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,857.56 : 238,234.50 = 70,107.48 : x
  2. Step 2: Convert to fraction form
    158,857.56/238,234.50 = 70,107.48/x
  3. Step 3: Cross multiply
    158,857.56x = 238,234.50 × 70,107.48
  4. Step 4: Simplify right side
    158,857.56x = 16,702,020,444.06
  5. Step 5: Solve for x
    x = 16,702,020,444.06/158,857.56
  6. Step 6: Final answer
    x = 105,138.34

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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.