Home / 102,172.23-141,017.21-67,656.09

Finding the Fourth Proportional to 102,172.23, 141,017.21 and 67,656.09

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Solution

The fourth proportional to 102,172.23, 141,017.21 and 67,656.09 is: 93,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,172.23 : 141,017.21 = 67,656.09 : x
  2. Step 2: Convert to fraction form
    102,172.23/141,017.21 = 67,656.09/x
  3. Step 3: Cross multiply
    102,172.23x = 141,017.21 × 67,656.09
  4. Step 4: Simplify right side
    102,172.23x = 9,540,672,713.03
  5. Step 5: Solve for x
    x = 9,540,672,713.03/102,172.23
  6. Step 6: Final answer
    x = 93,378.33

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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.