Home / 245,945.73-369,025.80-86,136.31

Finding the Fourth Proportional to 245,945.73, 369,025.80 and 86,136.31

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Solution

The fourth proportional to 245,945.73, 369,025.80 and 86,136.31 is: 129,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,945.73 : 369,025.80 = 86,136.31 : x
  2. Step 2: Convert to fraction form
    245,945.73/369,025.80 = 86,136.31/x
  3. Step 3: Cross multiply
    245,945.73x = 369,025.80 × 86,136.31
  4. Step 4: Simplify right side
    245,945.73x = 31,786,519,784.23
  5. Step 5: Solve for x
    x = 31,786,519,784.23/245,945.73
  6. Step 6: Final answer
    x = 129,242.01

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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.