Home / 209,868.13-289,582.56-117,975.17

Finding the Fourth Proportional to 209,868.13, 289,582.56 and 117,975.17

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Solution

The fourth proportional to 209,868.13, 289,582.56 and 117,975.17 is: 162,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,868.13 : 289,582.56 = 117,975.17 : x
  2. Step 2: Convert to fraction form
    209,868.13/289,582.56 = 117,975.17/x
  3. Step 3: Cross multiply
    209,868.13x = 289,582.56 × 117,975.17
  4. Step 4: Simplify right side
    209,868.13x = 34,163,551,155.16
  5. Step 5: Solve for x
    x = 34,163,551,155.16/209,868.13
  6. Step 6: Final answer
    x = 162,785.80

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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.