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Finding the Fourth Proportional to 117,480, 162,122.58 and 67,180.08

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Solution

The fourth proportional to 117,480, 162,122.58 and 67,180.08 is: 92,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,480 : 162,122.58 = 67,180.08 : x
  2. Step 2: Convert to fraction form
    117,480/162,122.58 = 67,180.08/x
  3. Step 3: Cross multiply
    117,480x = 162,122.58 × 67,180.08
  4. Step 4: Simplify right side
    117,480x = 10,891,407,894.21
  5. Step 5: Solve for x
    x = 10,891,407,894.21/117,480
  6. Step 6: Final answer
    x = 92,708.61

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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.