Home / 203,012.16-280,127.45-112,367.91

Finding the Fourth Proportional to 203,012.16, 280,127.45 and 112,367.91

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Solution

The fourth proportional to 203,012.16, 280,127.45 and 112,367.91 is: 155,051.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,012.16 : 280,127.45 = 112,367.91 : x
  2. Step 2: Convert to fraction form
    203,012.16/280,127.45 = 112,367.91/x
  3. Step 3: Cross multiply
    203,012.16x = 280,127.45 × 112,367.91
  4. Step 4: Simplify right side
    203,012.16x = 31,477,335,687.79
  5. Step 5: Solve for x
    x = 31,477,335,687.79/203,012.16
  6. Step 6: Final answer
    x = 155,051.48

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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.