Home / 112,137.28-154,754.40-64,392.64

Finding the Fourth Proportional to 112,137.28, 154,754.40 and 64,392.64

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Solution

The fourth proportional to 112,137.28, 154,754.40 and 64,392.64 is: 88,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,137.28 : 154,754.40 = 64,392.64 : x
  2. Step 2: Convert to fraction form
    112,137.28/154,754.40 = 64,392.64/x
  3. Step 3: Cross multiply
    112,137.28x = 154,754.40 × 64,392.64
  4. Step 4: Simplify right side
    112,137.28x = 9,965,044,367.62
  5. Step 5: Solve for x
    x = 9,965,044,367.62/112,137.28
  6. Step 6: Final answer
    x = 88,864.69

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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.