Home / 203,541.49-280,920.89-112,926.63

Finding the Fourth Proportional to 203,541.49, 280,920.89 and 112,926.63

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Solution

The fourth proportional to 203,541.49, 280,920.89 and 112,926.63 is: 155,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,541.49 : 280,920.89 = 112,926.63 : x
  2. Step 2: Convert to fraction form
    203,541.49/280,920.89 = 112,926.63/x
  3. Step 3: Cross multiply
    203,541.49x = 280,920.89 × 112,926.63
  4. Step 4: Simplify right side
    203,541.49x = 31,723,450,740.07
  5. Step 5: Solve for x
    x = 31,723,450,740.07/203,541.49
  6. Step 6: Final answer
    x = 155,857.42

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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.