Home / 78,445.41-118,094.97-71,470.25

Finding the Fourth Proportional to 78,445.41, 118,094.97 and 71,470.25

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Solution

The fourth proportional to 78,445.41, 118,094.97 and 71,470.25 is: 107,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,445.41 : 118,094.97 = 71,470.25 : x
  2. Step 2: Convert to fraction form
    78,445.41/118,094.97 = 71,470.25/x
  3. Step 3: Cross multiply
    78,445.41x = 118,094.97 × 71,470.25
  4. Step 4: Simplify right side
    78,445.41x = 8,440,277,150.04
  5. Step 5: Solve for x
    x = 8,440,277,150.04/78,445.41
  6. Step 6: Final answer
    x = 107,594.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.