Home / 155,227.04-214,231.07-86,323.38

Finding the Fourth Proportional to 155,227.04, 214,231.07 and 86,323.38

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Solution

The fourth proportional to 155,227.04, 214,231.07 and 86,323.38 is: 119,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,227.04 : 214,231.07 = 86,323.38 : x
  2. Step 2: Convert to fraction form
    155,227.04/214,231.07 = 86,323.38/x
  3. Step 3: Cross multiply
    155,227.04x = 214,231.07 × 86,323.38
  4. Step 4: Simplify right side
    155,227.04x = 18,493,150,279.23
  5. Step 5: Solve for x
    x = 18,493,150,279.23/155,227.04
  6. Step 6: Final answer
    x = 119,136.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.