Home / 203,011.06-280,152.93-112,367.20

Finding the Fourth Proportional to 203,011.06, 280,152.93 and 112,367.20

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Solution

The fourth proportional to 203,011.06, 280,152.93 and 112,367.20 is: 155,065.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,011.06 : 280,152.93 = 112,367.20 : x
  2. Step 2: Convert to fraction form
    203,011.06/280,152.93 = 112,367.20/x
  3. Step 3: Cross multiply
    203,011.06x = 280,152.93 × 112,367.20
  4. Step 4: Simplify right side
    203,011.06x = 31,480,000,315.90
  5. Step 5: Solve for x
    x = 31,480,000,315.90/203,011.06
  6. Step 6: Final answer
    x = 155,065.44

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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.