Home / 99,190.64-148,791.58-31,728.59

Finding the Fourth Proportional to 99,190.64, 148,791.58 and 31,728.59

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Solution

The fourth proportional to 99,190.64, 148,791.58 and 31,728.59 is: 47,594.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.64 : 148,791.58 = 31,728.59 : x
  2. Step 2: Convert to fraction form
    99,190.64/148,791.58 = 31,728.59/x
  3. Step 3: Cross multiply
    99,190.64x = 148,791.58 × 31,728.59
  4. Step 4: Simplify right side
    99,190.64x = 4,720,946,331.18
  5. Step 5: Solve for x
    x = 4,720,946,331.18/99,190.64
  6. Step 6: Final answer
    x = 47,594.67

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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.