Home / 117,110.64-161,612.76-63,395.48

Finding the Fourth Proportional to 117,110.64, 161,612.76 and 63,395.48

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Solution

The fourth proportional to 117,110.64, 161,612.76 and 63,395.48 is: 87,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,110.64 : 161,612.76 = 63,395.48 : x
  2. Step 2: Convert to fraction form
    117,110.64/161,612.76 = 63,395.48/x
  3. Step 3: Cross multiply
    117,110.64x = 161,612.76 × 63,395.48
  4. Step 4: Simplify right side
    117,110.64x = 10,245,518,494.32
  5. Step 5: Solve for x
    x = 10,245,518,494.32/117,110.64
  6. Step 6: Final answer
    x = 87,485.80

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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.