Home / 104,428.44-144,111.42-56,681.78

Finding the Fourth Proportional to 104,428.44, 144,111.42 and 56,681.78

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Solution

The fourth proportional to 104,428.44, 144,111.42 and 56,681.78 is: 78,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.44 : 144,111.42 = 56,681.78 : x
  2. Step 2: Convert to fraction form
    104,428.44/144,111.42 = 56,681.78/x
  3. Step 3: Cross multiply
    104,428.44x = 144,111.42 × 56,681.78
  4. Step 4: Simplify right side
    104,428.44x = 8,168,491,083.37
  5. Step 5: Solve for x
    x = 8,168,491,083.37/104,428.44
  6. Step 6: Final answer
    x = 78,220.94

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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.