Home / 142,871.78-214,238.40-43,013.36

Finding the Fourth Proportional to 142,871.78, 214,238.40 and 43,013.36

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Solution

The fourth proportional to 142,871.78, 214,238.40 and 43,013.36 is: 64,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,871.78 : 214,238.40 = 43,013.36 : x
  2. Step 2: Convert to fraction form
    142,871.78/214,238.40 = 43,013.36/x
  3. Step 3: Cross multiply
    142,871.78x = 214,238.40 × 43,013.36
  4. Step 4: Simplify right side
    142,871.78x = 9,215,113,425.02
  5. Step 5: Solve for x
    x = 9,215,113,425.02/142,871.78
  6. Step 6: Final answer
    x = 64,499.19

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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.