Home / 117,031.37-161,503.20-66,054.83

Finding the Fourth Proportional to 117,031.37, 161,503.20 and 66,054.83

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Solution

The fourth proportional to 117,031.37, 161,503.20 and 66,054.83 is: 91,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,031.37 : 161,503.20 = 66,054.83 : x
  2. Step 2: Convert to fraction form
    117,031.37/161,503.20 = 66,054.83/x
  3. Step 3: Cross multiply
    117,031.37x = 161,503.20 × 66,054.83
  4. Step 4: Simplify right side
    117,031.37x = 10,668,065,612.94
  5. Step 5: Solve for x
    x = 10,668,065,612.94/117,031.37
  6. Step 6: Final answer
    x = 91,155.61

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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.