Home / 102,730.75-141,858.74-64,556.66

Finding the Fourth Proportional to 102,730.75, 141,858.74 and 64,556.66

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Solution

The fourth proportional to 102,730.75, 141,858.74 and 64,556.66 is: 89,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,730.75 : 141,858.74 = 64,556.66 : x
  2. Step 2: Convert to fraction form
    102,730.75/141,858.74 = 64,556.66/x
  3. Step 3: Cross multiply
    102,730.75x = 141,858.74 × 64,556.66
  4. Step 4: Simplify right side
    102,730.75x = 9,157,926,962.25
  5. Step 5: Solve for x
    x = 9,157,926,962.25/102,730.75
  6. Step 6: Final answer
    x = 89,144.95

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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.