Home / 145,823.78-219,523.46-131,159.58

Finding the Fourth Proportional to 145,823.78, 219,523.46 and 131,159.58

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Solution

The fourth proportional to 145,823.78, 219,523.46 and 131,159.58 is: 197,447.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,823.78 : 219,523.46 = 131,159.58 : x
  2. Step 2: Convert to fraction form
    145,823.78/219,523.46 = 131,159.58/x
  3. Step 3: Cross multiply
    145,823.78x = 219,523.46 × 131,159.58
  4. Step 4: Simplify right side
    145,823.78x = 28,792,604,813.75
  5. Step 5: Solve for x
    x = 28,792,604,813.75/145,823.78
  6. Step 6: Final answer
    x = 197,447.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.