Home / 203,038.74-280,190.07-112,392.79

Finding the Fourth Proportional to 203,038.74, 280,190.07 and 112,392.79

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Solution

The fourth proportional to 203,038.74, 280,190.07 and 112,392.79 is: 155,100.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,038.74 : 280,190.07 = 112,392.79 : x
  2. Step 2: Convert to fraction form
    203,038.74/280,190.07 = 112,392.79/x
  3. Step 3: Cross multiply
    203,038.74x = 280,190.07 × 112,392.79
  4. Step 4: Simplify right side
    203,038.74x = 31,491,343,697.60
  5. Step 5: Solve for x
    x = 31,491,343,697.60/203,038.74
  6. Step 6: Final answer
    x = 155,100.17

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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.