Home / 78,927.50-118,924.07-65,195.16

Finding the Fourth Proportional to 78,927.50, 118,924.07 and 65,195.16

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Solution

The fourth proportional to 78,927.50, 118,924.07 and 65,195.16 is: 98,232.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,927.50 : 118,924.07 = 65,195.16 : x
  2. Step 2: Convert to fraction form
    78,927.50/118,924.07 = 65,195.16/x
  3. Step 3: Cross multiply
    78,927.50x = 118,924.07 × 65,195.16
  4. Step 4: Simplify right side
    78,927.50x = 7,753,273,445.53
  5. Step 5: Solve for x
    x = 7,753,273,445.53/78,927.50
  6. Step 6: Final answer
    x = 98,232.86

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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.