Home / 104,705.67-144,547.34-80,778.63

Finding the Fourth Proportional to 104,705.67, 144,547.34 and 80,778.63

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Solution

The fourth proportional to 104,705.67, 144,547.34 and 80,778.63 is: 111,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,705.67 : 144,547.34 = 80,778.63 : x
  2. Step 2: Convert to fraction form
    104,705.67/144,547.34 = 80,778.63/x
  3. Step 3: Cross multiply
    104,705.67x = 144,547.34 × 80,778.63
  4. Step 4: Simplify right side
    104,705.67x = 11,676,335,691.45
  5. Step 5: Solve for x
    x = 11,676,335,691.45/104,705.67
  6. Step 6: Final answer
    x = 111,515.79

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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.