Home / 142,039.16-213,051.82-53,285.75

Finding the Fourth Proportional to 142,039.16, 213,051.82 and 53,285.75

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Solution

The fourth proportional to 142,039.16, 213,051.82 and 53,285.75 is: 79,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,039.16 : 213,051.82 = 53,285.75 : x
  2. Step 2: Convert to fraction form
    142,039.16/213,051.82 = 53,285.75/x
  3. Step 3: Cross multiply
    142,039.16x = 213,051.82 × 53,285.75
  4. Step 4: Simplify right side
    142,039.16x = 11,352,626,017.57
  5. Step 5: Solve for x
    x = 11,352,626,017.57/142,039.16
  6. Step 6: Final answer
    x = 79,926.03

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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.