Home / 117,615.86-176,285.55-91,073.78

Finding the Fourth Proportional to 117,615.86, 176,285.55 and 91,073.78

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Solution

The fourth proportional to 117,615.86, 176,285.55 and 91,073.78 is: 136,503.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.86 : 176,285.55 = 91,073.78 : x
  2. Step 2: Convert to fraction form
    117,615.86/176,285.55 = 91,073.78/x
  3. Step 3: Cross multiply
    117,615.86x = 176,285.55 × 91,073.78
  4. Step 4: Simplify right side
    117,615.86x = 16,054,991,397.88
  5. Step 5: Solve for x
    x = 16,054,991,397.88/117,615.86
  6. Step 6: Final answer
    x = 136,503.63

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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.