Home / 142,040.04-213,051.71-53,286.12

Finding the Fourth Proportional to 142,040.04, 213,051.71 and 53,286.12

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Solution

The fourth proportional to 142,040.04, 213,051.71 and 53,286.12 is: 79,926.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,040.04 : 213,051.71 = 53,286.12 : x
  2. Step 2: Convert to fraction form
    142,040.04/213,051.71 = 53,286.12/x
  3. Step 3: Cross multiply
    142,040.04x = 213,051.71 × 53,286.12
  4. Step 4: Simplify right side
    142,040.04x = 11,352,697,920.01
  5. Step 5: Solve for x
    x = 11,352,697,920.01/142,040.04
  6. Step 6: Final answer
    x = 79,926.04

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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.