Home / 209,862.60-289,577.28-117,963.76

Finding the Fourth Proportional to 209,862.60, 289,577.28 and 117,963.76

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Solution

The fourth proportional to 209,862.60, 289,577.28 and 117,963.76 is: 162,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,862.60 : 289,577.28 = 117,963.76 : x
  2. Step 2: Convert to fraction form
    209,862.60/289,577.28 = 117,963.76/x
  3. Step 3: Cross multiply
    209,862.60x = 289,577.28 × 117,963.76
  4. Step 4: Simplify right side
    209,862.60x = 34,159,624,759.37
  5. Step 5: Solve for x
    x = 34,159,624,759.37/209,862.60
  6. Step 6: Final answer
    x = 162,771.38

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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.