Home / 100,893.07-139,232.43-58,476.21

Finding the Fourth Proportional to 100,893.07, 139,232.43 and 58,476.21

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Solution

The fourth proportional to 100,893.07, 139,232.43 and 58,476.21 is: 80,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,893.07 : 139,232.43 = 58,476.21 : x
  2. Step 2: Convert to fraction form
    100,893.07/139,232.43 = 58,476.21/x
  3. Step 3: Cross multiply
    100,893.07x = 139,232.43 × 58,476.21
  4. Step 4: Simplify right side
    100,893.07x = 8,141,784,815.49
  5. Step 5: Solve for x
    x = 8,141,784,815.49/100,893.07
  6. Step 6: Final answer
    x = 80,697.17

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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.