Home / 121,943.53-183,829.28-113,815.18

Finding the Fourth Proportional to 121,943.53, 183,829.28 and 113,815.18

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Solution

The fourth proportional to 121,943.53, 183,829.28 and 113,815.18 is: 171,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,943.53 : 183,829.28 = 113,815.18 : x
  2. Step 2: Convert to fraction form
    121,943.53/183,829.28 = 113,815.18/x
  3. Step 3: Cross multiply
    121,943.53x = 183,829.28 × 113,815.18
  4. Step 4: Simplify right side
    121,943.53x = 20,922,562,592.47
  5. Step 5: Solve for x
    x = 20,922,562,592.47/121,943.53
  6. Step 6: Final answer
    x = 171,575.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.