Home / 202,331.41-279,215.76-111,687.40

Finding the Fourth Proportional to 202,331.41, 279,215.76 and 111,687.40

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Solution

The fourth proportional to 202,331.41, 279,215.76 and 111,687.40 is: 154,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,331.41 : 279,215.76 = 111,687.40 : x
  2. Step 2: Convert to fraction form
    202,331.41/279,215.76 = 111,687.40/x
  3. Step 3: Cross multiply
    202,331.41x = 279,215.76 × 111,687.40
  4. Step 4: Simplify right side
    202,331.41x = 31,184,881,575.38
  5. Step 5: Solve for x
    x = 31,184,881,575.38/202,331.41
  6. Step 6: Final answer
    x = 154,127.74

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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.