Home / 133,089.20-183,707.16-79,391.60

Finding the Fourth Proportional to 133,089.20, 183,707.16 and 79,391.60

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Solution

The fourth proportional to 133,089.20, 183,707.16 and 79,391.60 is: 109,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,089.20 : 183,707.16 = 79,391.60 : x
  2. Step 2: Convert to fraction form
    133,089.20/183,707.16 = 79,391.60/x
  3. Step 3: Cross multiply
    133,089.20x = 183,707.16 × 79,391.60
  4. Step 4: Simplify right side
    133,089.20x = 14,584,805,363.86
  5. Step 5: Solve for x
    x = 14,584,805,363.86/133,089.20
  6. Step 6: Final answer
    x = 109,586.69

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1.5x scale

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.