Home / 203,017.40-280,161.78-112,373.48

Finding the Fourth Proportional to 203,017.40, 280,161.78 and 112,373.48

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Solution

The fourth proportional to 203,017.40, 280,161.78 and 112,373.48 is: 155,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,017.40 : 280,161.78 = 112,373.48 : x
  2. Step 2: Convert to fraction form
    203,017.40/280,161.78 = 112,373.48/x
  3. Step 3: Cross multiply
    203,017.40x = 280,161.78 × 112,373.48
  4. Step 4: Simplify right side
    203,017.40x = 31,482,754,181.59
  5. Step 5: Solve for x
    x = 31,482,754,181.59/203,017.40
  6. Step 6: Final answer
    x = 155,074.17

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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.