Home / 104,258.35-143,876.83-56,511.89

Finding the Fourth Proportional to 104,258.35, 143,876.83 and 56,511.89

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Solution

The fourth proportional to 104,258.35, 143,876.83 and 56,511.89 is: 77,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,258.35 : 143,876.83 = 56,511.89 : x
  2. Step 2: Convert to fraction form
    104,258.35/143,876.83 = 56,511.89/x
  3. Step 3: Cross multiply
    104,258.35x = 143,876.83 × 56,511.89
  4. Step 4: Simplify right side
    104,258.35x = 8,130,750,729.84
  5. Step 5: Solve for x
    x = 8,130,750,729.84/104,258.35
  6. Step 6: Final answer
    x = 77,986.57

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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.