Home / 187,406.57-258,621.38-110,987.31

Finding the Fourth Proportional to 187,406.57, 258,621.38 and 110,987.31

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Solution

The fourth proportional to 187,406.57, 258,621.38 and 110,987.31 is: 153,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,406.57 : 258,621.38 = 110,987.31 : x
  2. Step 2: Convert to fraction form
    187,406.57/258,621.38 = 110,987.31/x
  3. Step 3: Cross multiply
    187,406.57x = 258,621.38 × 110,987.31
  4. Step 4: Simplify right side
    187,406.57x = 28,703,690,719.75
  5. Step 5: Solve for x
    x = 28,703,690,719.75/187,406.57
  6. Step 6: Final answer
    x = 153,162.67

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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.