Home / 202,240.34-279,080.66-111,578.45

Finding the Fourth Proportional to 202,240.34, 279,080.66 and 111,578.45

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Solution

The fourth proportional to 202,240.34, 279,080.66 and 111,578.45 is: 153,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,240.34 : 279,080.66 = 111,578.45 : x
  2. Step 2: Convert to fraction form
    202,240.34/279,080.66 = 111,578.45/x
  3. Step 3: Cross multiply
    202,240.34x = 279,080.66 × 111,578.45
  4. Step 4: Simplify right side
    202,240.34x = 31,139,388,444.42
  5. Step 5: Solve for x
    x = 31,139,388,444.42/202,240.34
  6. Step 6: Final answer
    x = 153,972.20

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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.