Home / 203,303.07-280,560.83-112,660.81

Finding the Fourth Proportional to 203,303.07, 280,560.83 and 112,660.81

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Solution

The fourth proportional to 203,303.07, 280,560.83 and 112,660.81 is: 155,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,303.07 : 280,560.83 = 112,660.81 : x
  2. Step 2: Convert to fraction form
    203,303.07/280,560.83 = 112,660.81/x
  3. Step 3: Cross multiply
    203,303.07x = 280,560.83 × 112,660.81
  4. Step 4: Simplify right side
    203,303.07x = 31,608,209,097.37
  5. Step 5: Solve for x
    x = 31,608,209,097.37/203,303.07
  6. Step 6: Final answer
    x = 155,473.35

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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.