Home / 203,423.47-280,741.01-112,807.85

Finding the Fourth Proportional to 203,423.47, 280,741.01 and 112,807.85

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Solution

The fourth proportional to 203,423.47, 280,741.01 and 112,807.85 is: 155,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,423.47 : 280,741.01 = 112,807.85 : x
  2. Step 2: Convert to fraction form
    203,423.47/280,741.01 = 112,807.85/x
  3. Step 3: Cross multiply
    203,423.47x = 280,741.01 × 112,807.85
  4. Step 4: Simplify right side
    203,423.47x = 31,669,787,777.18
  5. Step 5: Solve for x
    x = 31,669,787,777.18/203,423.47
  6. Step 6: Final answer
    x = 155,684.04

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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.