Home / 203,204.14-280,423.95-112,561.49

Finding the Fourth Proportional to 203,204.14, 280,423.95 and 112,561.49

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Solution

The fourth proportional to 203,204.14, 280,423.95 and 112,561.49 is: 155,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,204.14 : 280,423.95 = 112,561.49 : x
  2. Step 2: Convert to fraction form
    203,204.14/280,423.95 = 112,561.49/x
  3. Step 3: Cross multiply
    203,204.14x = 280,423.95 × 112,561.49
  4. Step 4: Simplify right side
    203,204.14x = 31,564,937,643.69
  5. Step 5: Solve for x
    x = 31,564,937,643.69/203,204.14
  6. Step 6: Final answer
    x = 155,336.10

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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.