Home / 209,915.08-314,894.82-76,807.24

Finding the Fourth Proportional to 209,915.08, 314,894.82 and 76,807.24

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Solution

The fourth proportional to 209,915.08, 314,894.82 and 76,807.24 is: 115,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,915.08 : 314,894.82 = 76,807.24 : x
  2. Step 2: Convert to fraction form
    209,915.08/314,894.82 = 76,807.24/x
  3. Step 3: Cross multiply
    209,915.08x = 314,894.82 × 76,807.24
  4. Step 4: Simplify right side
    209,915.08x = 24,186,202,014.50
  5. Step 5: Solve for x
    x = 24,186,202,014.50/209,915.08
  6. Step 6: Final answer
    x = 115,218.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.