Home / 142,185.53-213,114.24-53,382.39

Finding the Fourth Proportional to 142,185.53, 213,114.24 and 53,382.39

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Solution

The fourth proportional to 142,185.53, 213,114.24 and 53,382.39 is: 80,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,185.53 : 213,114.24 = 53,382.39 : x
  2. Step 2: Convert to fraction form
    142,185.53/213,114.24 = 53,382.39/x
  3. Step 3: Cross multiply
    142,185.53x = 213,114.24 × 53,382.39
  4. Step 4: Simplify right side
    142,185.53x = 11,376,547,474.23
  5. Step 5: Solve for x
    x = 11,376,547,474.23/142,185.53
  6. Step 6: Final answer
    x = 80,011.99

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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.