Home / 155,228.04-214,232.45-86,324.38

Finding the Fourth Proportional to 155,228.04, 214,232.45 and 86,324.38

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Solution

The fourth proportional to 155,228.04, 214,232.45 and 86,324.38 is: 119,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,228.04 : 214,232.45 = 86,324.38 : x
  2. Step 2: Convert to fraction form
    155,228.04/214,232.45 = 86,324.38/x
  3. Step 3: Cross multiply
    155,228.04x = 214,232.45 × 86,324.38
  4. Step 4: Simplify right side
    155,228.04x = 18,493,483,422.13
  5. Step 5: Solve for x
    x = 18,493,483,422.13/155,228.04
  6. Step 6: Final answer
    x = 119,137.52

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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.