Home / 256,985.07-354,643.60-140,696.60

Finding the Fourth Proportional to 256,985.07, 354,643.60 and 140,696.60

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Solution

The fourth proportional to 256,985.07, 354,643.60 and 140,696.60 is: 194,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,985.07 : 354,643.60 = 140,696.60 : x
  2. Step 2: Convert to fraction form
    256,985.07/354,643.60 = 140,696.60/x
  3. Step 3: Cross multiply
    256,985.07x = 354,643.60 × 140,696.60
  4. Step 4: Simplify right side
    256,985.07x = 49,897,148,731.76
  5. Step 5: Solve for x
    x = 49,897,148,731.76/256,985.07
  6. Step 6: Final answer
    x = 194,163.61

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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.