Home / 202,560.09-279,518.88-111,915.32

Finding the Fourth Proportional to 202,560.09, 279,518.88 and 111,915.32

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Solution

The fourth proportional to 202,560.09, 279,518.88 and 111,915.32 is: 154,435.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,560.09 : 279,518.88 = 111,915.32 : x
  2. Step 2: Convert to fraction form
    202,560.09/279,518.88 = 111,915.32/x
  3. Step 3: Cross multiply
    202,560.09x = 279,518.88 × 111,915.32
  4. Step 4: Simplify right side
    202,560.09x = 31,282,444,551.34
  5. Step 5: Solve for x
    x = 31,282,444,551.34/202,560.09
  6. Step 6: Final answer
    x = 154,435.38

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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.