Home / 142,589.36-214,271.76-76,076.48

Finding the Fourth Proportional to 142,589.36, 214,271.76 and 76,076.48

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Solution

The fourth proportional to 142,589.36, 214,271.76 and 76,076.48 is: 114,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,589.36 : 214,271.76 = 76,076.48 : x
  2. Step 2: Convert to fraction form
    142,589.36/214,271.76 = 76,076.48/x
  3. Step 3: Cross multiply
    142,589.36x = 214,271.76 × 76,076.48
  4. Step 4: Simplify right side
    142,589.36x = 16,301,041,264.20
  5. Step 5: Solve for x
    x = 16,301,041,264.20/142,589.36
  6. Step 6: Final answer
    x = 114,321.58

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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.