Home / 203,122.48-280,305.59-112,476.51

Finding the Fourth Proportional to 203,122.48, 280,305.59 and 112,476.51

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Solution

The fourth proportional to 203,122.48, 280,305.59 and 112,476.51 is: 155,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,122.48 : 280,305.59 = 112,476.51 : x
  2. Step 2: Convert to fraction form
    203,122.48/280,305.59 = 112,476.51/x
  3. Step 3: Cross multiply
    203,122.48x = 280,305.59 × 112,476.51
  4. Step 4: Simplify right side
    203,122.48x = 31,527,792,883.16
  5. Step 5: Solve for x
    x = 31,527,792,883.16/203,122.48
  6. Step 6: Final answer
    x = 155,215.67

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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.