Home / 203,011.36-280,146.85-112,361.91

Finding the Fourth Proportional to 203,011.36, 280,146.85 and 112,361.91

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Solution

The fourth proportional to 203,011.36, 280,146.85 and 112,361.91 is: 155,054.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,011.36 : 280,146.85 = 112,361.91 : x
  2. Step 2: Convert to fraction form
    203,011.36/280,146.85 = 112,361.91/x
  3. Step 3: Cross multiply
    203,011.36x = 280,146.85 × 112,361.91
  4. Step 4: Simplify right side
    203,011.36x = 31,477,835,146.48
  5. Step 5: Solve for x
    x = 31,477,835,146.48/203,011.36
  6. Step 6: Final answer
    x = 155,054.55

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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.