Home / 216,549.86-324,880.07-90,148.14

Finding the Fourth Proportional to 216,549.86, 324,880.07 and 90,148.14

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Solution

The fourth proportional to 216,549.86, 324,880.07 and 90,148.14 is: 135,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,549.86 : 324,880.07 = 90,148.14 : x
  2. Step 2: Convert to fraction form
    216,549.86/324,880.07 = 90,148.14/x
  3. Step 3: Cross multiply
    216,549.86x = 324,880.07 × 90,148.14
  4. Step 4: Simplify right side
    216,549.86x = 29,287,333,582.83
  5. Step 5: Solve for x
    x = 29,287,333,582.83/216,549.86
  6. Step 6: Final answer
    x = 135,245.22

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1.5x scale

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.