Home / 112,170.72-154,799.52-64,432.80

Finding the Fourth Proportional to 112,170.72, 154,799.52 and 64,432.80

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Solution

The fourth proportional to 112,170.72, 154,799.52 and 64,432.80 is: 88,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,170.72 : 154,799.52 = 64,432.80 : x
  2. Step 2: Convert to fraction form
    112,170.72/154,799.52 = 64,432.80/x
  3. Step 3: Cross multiply
    112,170.72x = 154,799.52 × 64,432.80
  4. Step 4: Simplify right side
    112,170.72x = 9,974,166,512.26
  5. Step 5: Solve for x
    x = 9,974,166,512.26/112,170.72
  6. Step 6: Final answer
    x = 88,919.52

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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.