Home / 142,865.28-214,299.54-54,094.68

Finding the Fourth Proportional to 142,865.28, 214,299.54 and 54,094.68

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Solution

The fourth proportional to 142,865.28, 214,299.54 and 54,094.68 is: 81,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,865.28 : 214,299.54 = 54,094.68 : x
  2. Step 2: Convert to fraction form
    142,865.28/214,299.54 = 54,094.68/x
  3. Step 3: Cross multiply
    142,865.28x = 214,299.54 × 54,094.68
  4. Step 4: Simplify right side
    142,865.28x = 11,592,465,040.45
  5. Step 5: Solve for x
    x = 11,592,465,040.45/142,865.28
  6. Step 6: Final answer
    x = 81,142.63

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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.