Home / 203,017.75-280,157.35-112,373.89

Finding the Fourth Proportional to 203,017.75, 280,157.35 and 112,373.89

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Solution

The fourth proportional to 203,017.75, 280,157.35 and 112,373.89 is: 155,072.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,017.75 : 280,157.35 = 112,373.89 : x
  2. Step 2: Convert to fraction form
    203,017.75/280,157.35 = 112,373.89/x
  3. Step 3: Cross multiply
    203,017.75x = 280,157.35 × 112,373.89
  4. Step 4: Simplify right side
    203,017.75x = 31,482,371,231.59
  5. Step 5: Solve for x
    x = 31,482,371,231.59/203,017.75
  6. Step 6: Final answer
    x = 155,072.01

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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.