Home / 121,622.32-182,284.44-69,076

Finding the Fourth Proportional to 121,622.32, 182,284.44 and 69,076

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Solution

The fourth proportional to 121,622.32, 182,284.44 and 69,076 is: 103,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,622.32 : 182,284.44 = 69,076 : x
  2. Step 2: Convert to fraction form
    121,622.32/182,284.44 = 69,076/x
  3. Step 3: Cross multiply
    121,622.32x = 182,284.44 × 69,076
  4. Step 4: Simplify right side
    121,622.32x = 12,591,479,977.44
  5. Step 5: Solve for x
    x = 12,591,479,977.44/121,622.32
  6. Step 6: Final answer
    x = 103,529.35

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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.