Home / 74,910.30-103,497.75-74,173.02

Finding the Fourth Proportional to 74,910.30, 103,497.75 and 74,173.02

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Solution

The fourth proportional to 74,910.30, 103,497.75 and 74,173.02 is: 102,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.30 : 103,497.75 = 74,173.02 : x
  2. Step 2: Convert to fraction form
    74,910.30/103,497.75 = 74,173.02/x
  3. Step 3: Cross multiply
    74,910.30x = 103,497.75 × 74,173.02
  4. Step 4: Simplify right side
    74,910.30x = 7,676,740,680.71
  5. Step 5: Solve for x
    x = 7,676,740,680.71/74,910.30
  6. Step 6: Final answer
    x = 102,479.11

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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.