Home / 104,123.75-143,583.38-89,066.26

Finding the Fourth Proportional to 104,123.75, 143,583.38 and 89,066.26

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Solution

The fourth proportional to 104,123.75, 143,583.38 and 89,066.26 is: 122,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,123.75 : 143,583.38 = 89,066.26 : x
  2. Step 2: Convert to fraction form
    104,123.75/143,583.38 = 89,066.26/x
  3. Step 3: Cross multiply
    104,123.75x = 143,583.38 × 89,066.26
  4. Step 4: Simplify right side
    104,123.75x = 12,788,434,820.07
  5. Step 5: Solve for x
    x = 12,788,434,820.07/104,123.75
  6. Step 6: Final answer
    x = 122,819.57

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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.