Home / 117,518.64-162,296.76-100,653.36

Finding the Fourth Proportional to 117,518.64, 162,296.76 and 100,653.36

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Solution

The fourth proportional to 117,518.64, 162,296.76 and 100,653.36 is: 139,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,518.64 : 162,296.76 = 100,653.36 : x
  2. Step 2: Convert to fraction form
    117,518.64/162,296.76 = 100,653.36/x
  3. Step 3: Cross multiply
    117,518.64x = 162,296.76 × 100,653.36
  4. Step 4: Simplify right side
    117,518.64x = 16,335,714,211.11
  5. Step 5: Solve for x
    x = 16,335,714,211.11/117,518.64
  6. Step 6: Final answer
    x = 139,005.30

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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.