Home / 104,856.90-144,704.25-57,111.18

Finding the Fourth Proportional to 104,856.90, 144,704.25 and 57,111.18

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Solution

The fourth proportional to 104,856.90, 144,704.25 and 57,111.18 is: 78,814.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,856.90 : 144,704.25 = 57,111.18 : x
  2. Step 2: Convert to fraction form
    104,856.90/144,704.25 = 57,111.18/x
  3. Step 3: Cross multiply
    104,856.90x = 144,704.25 × 57,111.18
  4. Step 4: Simplify right side
    104,856.90x = 8,264,230,468.52
  5. Step 5: Solve for x
    x = 8,264,230,468.52/104,856.90
  6. Step 6: Final answer
    x = 78,814.37

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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.