Home / 209,459.25-289,031.90-118,786.23

Finding the Fourth Proportional to 209,459.25, 289,031.90 and 118,786.23

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Solution

The fourth proportional to 209,459.25, 289,031.90 and 118,786.23 is: 163,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,459.25 : 289,031.90 = 118,786.23 : x
  2. Step 2: Convert to fraction form
    209,459.25/289,031.90 = 118,786.23/x
  3. Step 3: Cross multiply
    209,459.25x = 289,031.90 × 118,786.23
  4. Step 4: Simplify right side
    209,459.25x = 34,333,009,156.81
  5. Step 5: Solve for x
    x = 34,333,009,156.81/209,459.25
  6. Step 6: Final answer
    x = 163,912.59

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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.