Home / 142,760.31-214,142.90-54,055.59

Finding the Fourth Proportional to 142,760.31, 214,142.90 and 54,055.59

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Solution

The fourth proportional to 142,760.31, 214,142.90 and 54,055.59 is: 81,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,760.31 : 214,142.90 = 54,055.59 : x
  2. Step 2: Convert to fraction form
    142,760.31/214,142.90 = 54,055.59/x
  3. Step 3: Cross multiply
    142,760.31x = 214,142.90 × 54,055.59
  4. Step 4: Simplify right side
    142,760.31x = 11,575,620,803.81
  5. Step 5: Solve for x
    x = 11,575,620,803.81/142,760.31
  6. Step 6: Final answer
    x = 81,084.31

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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.