Home / 142,538.15-213,856.13-53,817.03

Finding the Fourth Proportional to 142,538.15, 213,856.13 and 53,817.03

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Solution

The fourth proportional to 142,538.15, 213,856.13 and 53,817.03 is: 80,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,538.15 : 213,856.13 = 53,817.03 : x
  2. Step 2: Convert to fraction form
    142,538.15/213,856.13 = 53,817.03/x
  3. Step 3: Cross multiply
    142,538.15x = 213,856.13 × 53,817.03
  4. Step 4: Simplify right side
    142,538.15x = 11,509,101,898.44
  5. Step 5: Solve for x
    x = 11,509,101,898.44/142,538.15
  6. Step 6: Final answer
    x = 80,744.01

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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.