Home / 209,387.25-289,005.75-118,796.25

Finding the Fourth Proportional to 209,387.25, 289,005.75 and 118,796.25

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Solution

The fourth proportional to 209,387.25, 289,005.75 and 118,796.25 is: 163,967.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,387.25 : 289,005.75 = 118,796.25 : x
  2. Step 2: Convert to fraction form
    209,387.25/289,005.75 = 118,796.25/x
  3. Step 3: Cross multiply
    209,387.25x = 289,005.75 × 118,796.25
  4. Step 4: Simplify right side
    209,387.25x = 34,332,799,328.44
  5. Step 5: Solve for x
    x = 34,332,799,328.44/209,387.25
  6. Step 6: Final answer
    x = 163,967.96

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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.