Home / 142,708.10-213,908.55-53,927.30

Finding the Fourth Proportional to 142,708.10, 213,908.55 and 53,927.30

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Solution

The fourth proportional to 142,708.10, 213,908.55 and 53,927.30 is: 80,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,708.10 : 213,908.55 = 53,927.30 : x
  2. Step 2: Convert to fraction form
    142,708.10/213,908.55 = 53,927.30/x
  3. Step 3: Cross multiply
    142,708.10x = 213,908.55 × 53,927.30
  4. Step 4: Simplify right side
    142,708.10x = 11,535,510,548.42
  5. Step 5: Solve for x
    x = 11,535,510,548.42/142,708.10
  6. Step 6: Final answer
    x = 80,832.91

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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.