Home / 190,543.78-285,815.77-48,399.72

Finding the Fourth Proportional to 190,543.78, 285,815.77 and 48,399.72

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Solution

The fourth proportional to 190,543.78, 285,815.77 and 48,399.72 is: 72,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,543.78 : 285,815.77 = 48,399.72 : x
  2. Step 2: Convert to fraction form
    190,543.78/285,815.77 = 48,399.72/x
  3. Step 3: Cross multiply
    190,543.78x = 285,815.77 × 48,399.72
  4. Step 4: Simplify right side
    190,543.78x = 13,833,403,239.58
  5. Step 5: Solve for x
    x = 13,833,403,239.58/190,543.78
  6. Step 6: Final answer
    x = 72,599.61

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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.