Home / 103,799.69-143,278.94-64,539.39

Finding the Fourth Proportional to 103,799.69, 143,278.94 and 64,539.39

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Solution

The fourth proportional to 103,799.69, 143,278.94 and 64,539.39 is: 89,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,799.69 : 143,278.94 = 64,539.39 : x
  2. Step 2: Convert to fraction form
    103,799.69/143,278.94 = 64,539.39/x
  3. Step 3: Cross multiply
    103,799.69x = 143,278.94 × 64,539.39
  4. Step 4: Simplify right side
    103,799.69x = 9,247,136,086.09
  5. Step 5: Solve for x
    x = 9,247,136,086.09/103,799.69
  6. Step 6: Final answer
    x = 89,086.36

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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.