Home / 112,133.28-154,748.88-64,388.64

Finding the Fourth Proportional to 112,133.28, 154,748.88 and 64,388.64

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Solution

The fourth proportional to 112,133.28, 154,748.88 and 64,388.64 is: 88,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,133.28 : 154,748.88 = 64,388.64 : x
  2. Step 2: Convert to fraction form
    112,133.28/154,748.88 = 64,388.64/x
  3. Step 3: Cross multiply
    112,133.28x = 154,748.88 × 64,388.64
  4. Step 4: Simplify right side
    112,133.28x = 9,964,069,924.72
  5. Step 5: Solve for x
    x = 9,964,069,924.72/112,133.28
  6. Step 6: Final answer
    x = 88,859.17

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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.