Home / 112,078.28-168,084.62-92,307.80

Finding the Fourth Proportional to 112,078.28, 168,084.62 and 92,307.80

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Solution

The fourth proportional to 112,078.28, 168,084.62 and 92,307.80 is: 138,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,078.28 : 168,084.62 = 92,307.80 : x
  2. Step 2: Convert to fraction form
    112,078.28/168,084.62 = 92,307.80/x
  3. Step 3: Cross multiply
    112,078.28x = 168,084.62 × 92,307.80
  4. Step 4: Simplify right side
    112,078.28x = 15,515,521,790.86
  5. Step 5: Solve for x
    x = 15,515,521,790.86/112,078.28
  6. Step 6: Final answer
    x = 138,434.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.