Home / 203,518.26-280,851.02-112,859.60

Finding the Fourth Proportional to 203,518.26, 280,851.02 and 112,859.60

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Solution

The fourth proportional to 203,518.26, 280,851.02 and 112,859.60 is: 155,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,518.26 : 280,851.02 = 112,859.60 : x
  2. Step 2: Convert to fraction form
    203,518.26/280,851.02 = 112,859.60/x
  3. Step 3: Cross multiply
    203,518.26x = 280,851.02 × 112,859.60
  4. Step 4: Simplify right side
    203,518.26x = 31,696,731,808.24
  5. Step 5: Solve for x
    x = 31,696,731,808.24/203,518.26
  6. Step 6: Final answer
    x = 155,743.92

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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.