Home / 142,136.07-213,158.75-57,896.07

Finding the Fourth Proportional to 142,136.07, 213,158.75 and 57,896.07

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Solution

The fourth proportional to 142,136.07, 213,158.75 and 57,896.07 is: 86,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,136.07 : 213,158.75 = 57,896.07 : x
  2. Step 2: Convert to fraction form
    142,136.07/213,158.75 = 57,896.07/x
  3. Step 3: Cross multiply
    142,136.07x = 213,158.75 × 57,896.07
  4. Step 4: Simplify right side
    142,136.07x = 12,341,053,621.63
  5. Step 5: Solve for x
    x = 12,341,053,621.63/142,136.07
  6. Step 6: Final answer
    x = 86,825.63

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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.