Home / 102,045.69-140,824.75-56,107.28

Finding the Fourth Proportional to 102,045.69, 140,824.75 and 56,107.28

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Solution

The fourth proportional to 102,045.69, 140,824.75 and 56,107.28 is: 77,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,045.69 : 140,824.75 = 56,107.28 : x
  2. Step 2: Convert to fraction form
    102,045.69/140,824.75 = 56,107.28/x
  3. Step 3: Cross multiply
    102,045.69x = 140,824.75 × 56,107.28
  4. Step 4: Simplify right side
    102,045.69x = 7,901,293,361.84
  5. Step 5: Solve for x
    x = 7,901,293,361.84/102,045.69
  6. Step 6: Final answer
    x = 77,428.97

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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.