Home / 105,181.12-145,149.60-62,741.44

Finding the Fourth Proportional to 105,181.12, 145,149.60 and 62,741.44

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Solution

The fourth proportional to 105,181.12, 145,149.60 and 62,741.44 is: 86,582.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,181.12 : 145,149.60 = 62,741.44 : x
  2. Step 2: Convert to fraction form
    105,181.12/145,149.60 = 62,741.44/x
  3. Step 3: Cross multiply
    105,181.12x = 145,149.60 × 62,741.44
  4. Step 4: Simplify right side
    105,181.12x = 9,106,894,919.42
  5. Step 5: Solve for x
    x = 9,106,894,919.42/105,181.12
  6. Step 6: Final answer
    x = 86,582.98

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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.