Home / 209,270.76-288,835.54-124,371.40

Finding the Fourth Proportional to 209,270.76, 288,835.54 and 124,371.40

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Solution

The fourth proportional to 209,270.76, 288,835.54 and 124,371.40 is: 171,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,270.76 : 288,835.54 = 124,371.40 : x
  2. Step 2: Convert to fraction form
    209,270.76/288,835.54 = 124,371.40/x
  3. Step 3: Cross multiply
    209,270.76x = 288,835.54 × 124,371.40
  4. Step 4: Simplify right side
    209,270.76x = 35,922,880,479.56
  5. Step 5: Solve for x
    x = 35,922,880,479.56/209,270.76
  6. Step 6: Final answer
    x = 171,657.43

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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.