Home / 78,445.44-118,095.02-71,470.28

Finding the Fourth Proportional to 78,445.44, 118,095.02 and 71,470.28

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Solution

The fourth proportional to 78,445.44, 118,095.02 and 71,470.28 is: 107,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,445.44 : 118,095.02 = 71,470.28 : x
  2. Step 2: Convert to fraction form
    78,445.44/118,095.02 = 71,470.28/x
  3. Step 3: Cross multiply
    78,445.44x = 118,095.02 × 71,470.28
  4. Step 4: Simplify right side
    78,445.44x = 8,440,284,146.01
  5. Step 5: Solve for x
    x = 8,440,284,146.01/78,445.44
  6. Step 6: Final answer
    x = 107,594.32

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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.