Home / 104,838.55-144,683.27-78,950.75

Finding the Fourth Proportional to 104,838.55, 144,683.27 and 78,950.75

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Solution

The fourth proportional to 104,838.55, 144,683.27 and 78,950.75 is: 108,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,838.55 : 144,683.27 = 78,950.75 : x
  2. Step 2: Convert to fraction form
    104,838.55/144,683.27 = 78,950.75/x
  3. Step 3: Cross multiply
    104,838.55x = 144,683.27 × 78,950.75
  4. Step 4: Simplify right side
    104,838.55x = 11,422,852,678.95
  5. Step 5: Solve for x
    x = 11,422,852,678.95/104,838.55
  6. Step 6: Final answer
    x = 108,956.61

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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.