Home / 112,157.29-154,786.37-64,419.85

Finding the Fourth Proportional to 112,157.29, 154,786.37 and 64,419.85

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Solution

The fourth proportional to 112,157.29, 154,786.37 and 64,419.85 is: 88,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,157.29 : 154,786.37 = 64,419.85 : x
  2. Step 2: Convert to fraction form
    112,157.29/154,786.37 = 64,419.85/x
  3. Step 3: Cross multiply
    112,157.29x = 154,786.37 × 64,419.85
  4. Step 4: Simplify right side
    112,157.29x = 9,971,314,415.35
  5. Step 5: Solve for x
    x = 9,971,314,415.35/112,157.29
  6. Step 6: Final answer
    x = 88,904.74

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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.