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Finding the Fourth Proportional to 117,050.40, 161,499.60 and 71,085.60

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Solution

The fourth proportional to 117,050.40, 161,499.60 and 71,085.60 is: 98,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,050.40 : 161,499.60 = 71,085.60 : x
  2. Step 2: Convert to fraction form
    117,050.40/161,499.60 = 71,085.60/x
  3. Step 3: Cross multiply
    117,050.40x = 161,499.60 × 71,085.60
  4. Step 4: Simplify right side
    117,050.40x = 11,480,295,965.76
  5. Step 5: Solve for x
    x = 11,480,295,965.76/117,050.40
  6. Step 6: Final answer
    x = 98,079.94

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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.