Home / 155,537.53-214,583.13-90,986.20

Finding the Fourth Proportional to 155,537.53, 214,583.13 and 90,986.20

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Solution

The fourth proportional to 155,537.53, 214,583.13 and 90,986.20 is: 125,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,537.53 : 214,583.13 = 90,986.20 : x
  2. Step 2: Convert to fraction form
    155,537.53/214,583.13 = 90,986.20/x
  3. Step 3: Cross multiply
    155,537.53x = 214,583.13 × 90,986.20
  4. Step 4: Simplify right side
    155,537.53x = 19,524,103,582.81
  5. Step 5: Solve for x
    x = 19,524,103,582.81/155,537.53
  6. Step 6: Final answer
    x = 125,526.64

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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.