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Finding the Fourth Proportional to 114,325.10, 171,425.79 and 90,784.09

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Solution

The fourth proportional to 114,325.10, 171,425.79 and 90,784.09 is: 136,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,325.10 : 171,425.79 = 90,784.09 : x
  2. Step 2: Convert to fraction form
    114,325.10/171,425.79 = 90,784.09/x
  3. Step 3: Cross multiply
    114,325.10x = 171,425.79 × 90,784.09
  4. Step 4: Simplify right side
    114,325.10x = 15,562,734,347.68
  5. Step 5: Solve for x
    x = 15,562,734,347.68/114,325.10
  6. Step 6: Final answer
    x = 136,127.02

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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.