Home / 203,012.03-280,149.45-112,368.17

Finding the Fourth Proportional to 203,012.03, 280,149.45 and 112,368.17

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Solution

The fourth proportional to 203,012.03, 280,149.45 and 112,368.17 is: 155,064.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,012.03 : 280,149.45 = 112,368.17 : x
  2. Step 2: Convert to fraction form
    203,012.03/280,149.45 = 112,368.17/x
  3. Step 3: Cross multiply
    203,012.03x = 280,149.45 × 112,368.17
  4. Step 4: Simplify right side
    203,012.03x = 31,479,881,023.01
  5. Step 5: Solve for x
    x = 31,479,881,023.01/203,012.03
  6. Step 6: Final answer
    x = 155,064.12

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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.