Home / 202,330.17-279,215.69-111,686.19

Finding the Fourth Proportional to 202,330.17, 279,215.69 and 111,686.19

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Solution

The fourth proportional to 202,330.17, 279,215.69 and 111,686.19 is: 154,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,330.17 : 279,215.69 = 111,686.19 : x
  2. Step 2: Convert to fraction form
    202,330.17/279,215.69 = 111,686.19/x
  3. Step 3: Cross multiply
    202,330.17x = 279,215.69 × 111,686.19
  4. Step 4: Simplify right side
    202,330.17x = 31,184,536,604.32
  5. Step 5: Solve for x
    x = 31,184,536,604.32/202,330.17
  6. Step 6: Final answer
    x = 154,126.97

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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.