Home / 202,605.12-279,590.22-111,956.40

Finding the Fourth Proportional to 202,605.12, 279,590.22 and 111,956.40

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Solution

The fourth proportional to 202,605.12, 279,590.22 and 111,956.40 is: 154,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,605.12 : 279,590.22 = 111,956.40 : x
  2. Step 2: Convert to fraction form
    202,605.12/279,590.22 = 111,956.40/x
  3. Step 3: Cross multiply
    202,605.12x = 279,590.22 × 111,956.40
  4. Step 4: Simplify right side
    202,605.12x = 31,301,914,506.41
  5. Step 5: Solve for x
    x = 31,301,914,506.41/202,605.12
  6. Step 6: Final answer
    x = 154,497.15

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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.