Home / 185,788.58-256,397.28-105,219.50

Finding the Fourth Proportional to 185,788.58, 256,397.28 and 105,219.50

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Solution

The fourth proportional to 185,788.58, 256,397.28 and 105,219.50 is: 145,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,788.58 : 256,397.28 = 105,219.50 : x
  2. Step 2: Convert to fraction form
    185,788.58/256,397.28 = 105,219.50/x
  3. Step 3: Cross multiply
    185,788.58x = 256,397.28 × 105,219.50
  4. Step 4: Simplify right side
    185,788.58x = 26,977,993,602.96
  5. Step 5: Solve for x
    x = 26,977,993,602.96/185,788.58
  6. Step 6: Final answer
    x = 145,208.03

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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.