Home / 117,385.44-162,084.96-108,429.60

Finding the Fourth Proportional to 117,385.44, 162,084.96 and 108,429.60

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Solution

The fourth proportional to 117,385.44, 162,084.96 and 108,429.60 is: 149,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,385.44 : 162,084.96 = 108,429.60 : x
  2. Step 2: Convert to fraction form
    117,385.44/162,084.96 = 108,429.60/x
  3. Step 3: Cross multiply
    117,385.44x = 162,084.96 × 108,429.60
  4. Step 4: Simplify right side
    117,385.44x = 17,574,807,378.82
  5. Step 5: Solve for x
    x = 17,574,807,378.82/117,385.44
  6. Step 6: Final answer
    x = 149,718.80

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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.