Home / 203,499.84-280,829.78-112,869.69

Finding the Fourth Proportional to 203,499.84, 280,829.78 and 112,869.69

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Solution

The fourth proportional to 203,499.84, 280,829.78 and 112,869.69 is: 155,760.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,499.84 : 280,829.78 = 112,869.69 : x
  2. Step 2: Convert to fraction form
    203,499.84/280,829.78 = 112,869.69/x
  3. Step 3: Cross multiply
    203,499.84x = 280,829.78 × 112,869.69
  4. Step 4: Simplify right side
    203,499.84x = 31,697,169,652.06
  5. Step 5: Solve for x
    x = 31,697,169,652.06/203,499.84
  6. Step 6: Final answer
    x = 155,760.17

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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.