Home / 203,161.63-280,341.69-112,515.22

Finding the Fourth Proportional to 203,161.63, 280,341.69 and 112,515.22

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Solution

The fourth proportional to 203,161.63, 280,341.69 and 112,515.22 is: 155,259.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,161.63 : 280,341.69 = 112,515.22 : x
  2. Step 2: Convert to fraction form
    203,161.63/280,341.69 = 112,515.22/x
  3. Step 3: Cross multiply
    203,161.63x = 280,341.69 × 112,515.22
  4. Step 4: Simplify right side
    203,161.63x = 31,542,706,925.52
  5. Step 5: Solve for x
    x = 31,542,706,925.52/203,161.63
  6. Step 6: Final answer
    x = 155,259.17

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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.