Home / 146,128.66-218,694.53-90,007.50

Finding the Fourth Proportional to 146,128.66, 218,694.53 and 90,007.50

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Solution

The fourth proportional to 146,128.66, 218,694.53 and 90,007.50 is: 134,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,128.66 : 218,694.53 = 90,007.50 : x
  2. Step 2: Convert to fraction form
    146,128.66/218,694.53 = 90,007.50/x
  3. Step 3: Cross multiply
    146,128.66x = 218,694.53 × 90,007.50
  4. Step 4: Simplify right side
    146,128.66x = 19,684,148,954.10
  5. Step 5: Solve for x
    x = 19,684,148,954.10/146,128.66
  6. Step 6: Final answer
    x = 134,704.23

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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.