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Finding the Fourth Proportional to 101,053.33, 139,463.45 and 75,515.35

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Solution

The fourth proportional to 101,053.33, 139,463.45 and 75,515.35 is: 104,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,053.33 : 139,463.45 = 75,515.35 : x
  2. Step 2: Convert to fraction form
    101,053.33/139,463.45 = 75,515.35/x
  3. Step 3: Cross multiply
    101,053.33x = 139,463.45 × 75,515.35
  4. Step 4: Simplify right side
    101,053.33x = 10,531,631,238.96
  5. Step 5: Solve for x
    x = 10,531,631,238.96/101,053.33
  6. Step 6: Final answer
    x = 104,218.55

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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.