Home / 117,188.10-161,729.52-66,210.18

Finding the Fourth Proportional to 117,188.10, 161,729.52 and 66,210.18

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Solution

The fourth proportional to 117,188.10, 161,729.52 and 66,210.18 is: 91,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,188.10 : 161,729.52 = 66,210.18 : x
  2. Step 2: Convert to fraction form
    117,188.10/161,729.52 = 66,210.18/x
  3. Step 3: Cross multiply
    117,188.10x = 161,729.52 × 66,210.18
  4. Step 4: Simplify right side
    117,188.10x = 10,708,140,630.51
  5. Step 5: Solve for x
    x = 10,708,140,630.51/117,188.10
  6. Step 6: Final answer
    x = 91,375.67

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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.