Home / 102,959.50-142,086.48-57,636.34

Finding the Fourth Proportional to 102,959.50, 142,086.48 and 57,636.34

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Solution

The fourth proportional to 102,959.50, 142,086.48 and 57,636.34 is: 79,539.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,959.50 : 142,086.48 = 57,636.34 : x
  2. Step 2: Convert to fraction form
    102,959.50/142,086.48 = 57,636.34/x
  3. Step 3: Cross multiply
    102,959.50x = 142,086.48 × 57,636.34
  4. Step 4: Simplify right side
    102,959.50x = 8,189,344,670.68
  5. Step 5: Solve for x
    x = 8,189,344,670.68/102,959.50
  6. Step 6: Final answer
    x = 79,539.48

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1.5x scale

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.