Home / 78,768.22-118,113.96-26,159.94

Finding the Fourth Proportional to 78,768.22, 118,113.96 and 26,159.94

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Solution

The fourth proportional to 78,768.22, 118,113.96 and 26,159.94 is: 39,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,768.22 : 118,113.96 = 26,159.94 : x
  2. Step 2: Convert to fraction form
    78,768.22/118,113.96 = 26,159.94/x
  3. Step 3: Cross multiply
    78,768.22x = 118,113.96 × 26,159.94
  4. Step 4: Simplify right side
    78,768.22x = 3,089,854,106.76
  5. Step 5: Solve for x
    x = 3,089,854,106.76/78,768.22
  6. Step 6: Final answer
    x = 39,227.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.