Home / 292,836.40-439,276.20-105,823.60

Finding the Fourth Proportional to 292,836.40, 439,276.20 and 105,823.60

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Solution

The fourth proportional to 292,836.40, 439,276.20 and 105,823.60 is: 158,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,836.40 : 439,276.20 = 105,823.60 : x
  2. Step 2: Convert to fraction form
    292,836.40/439,276.20 = 105,823.60/x
  3. Step 3: Cross multiply
    292,836.40x = 439,276.20 × 105,823.60
  4. Step 4: Simplify right side
    292,836.40x = 46,485,788,878.32
  5. Step 5: Solve for x
    x = 46,485,788,878.32/292,836.40
  6. Step 6: Final answer
    x = 158,743.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.