Home / 209,427.90-314,323.23-109,657.86

Finding the Fourth Proportional to 209,427.90, 314,323.23 and 109,657.86

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Solution

The fourth proportional to 209,427.90, 314,323.23 and 109,657.86 is: 164,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,427.90 : 314,323.23 = 109,657.86 : x
  2. Step 2: Convert to fraction form
    209,427.90/314,323.23 = 109,657.86/x
  3. Step 3: Cross multiply
    209,427.90x = 314,323.23 × 109,657.86
  4. Step 4: Simplify right side
    209,427.90x = 34,468,012,750.09
  5. Step 5: Solve for x
    x = 34,468,012,750.09/209,427.90
  6. Step 6: Final answer
    x = 164,581.76

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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.