Home / 209,170.40-288,644.07-118,527.44

Finding the Fourth Proportional to 209,170.40, 288,644.07 and 118,527.44

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Solution

The fourth proportional to 209,170.40, 288,644.07 and 118,527.44 is: 163,561.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,170.40 : 288,644.07 = 118,527.44 : x
  2. Step 2: Convert to fraction form
    209,170.40/288,644.07 = 118,527.44/x
  3. Step 3: Cross multiply
    209,170.40x = 288,644.07 × 118,527.44
  4. Step 4: Simplify right side
    209,170.40x = 34,212,243,409.89
  5. Step 5: Solve for x
    x = 34,212,243,409.89/209,170.40
  6. Step 6: Final answer
    x = 163,561.59

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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.