Home / 74,111.80-102,205.18-68,607.39

Finding the Fourth Proportional to 74,111.80, 102,205.18 and 68,607.39

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Solution

The fourth proportional to 74,111.80, 102,205.18 and 68,607.39 is: 94,614.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.80 : 102,205.18 = 68,607.39 : x
  2. Step 2: Convert to fraction form
    74,111.80/102,205.18 = 68,607.39/x
  3. Step 3: Cross multiply
    74,111.80x = 102,205.18 × 68,607.39
  4. Step 4: Simplify right side
    74,111.80x = 7,012,030,644.28
  5. Step 5: Solve for x
    x = 7,012,030,644.28/74,111.80
  6. Step 6: Final answer
    x = 94,614.23

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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.