Home / 118,830.04-178,262.98-51,380.53

Finding the Fourth Proportional to 118,830.04, 178,262.98 and 51,380.53

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Solution

The fourth proportional to 118,830.04, 178,262.98 and 51,380.53 is: 77,078.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,830.04 : 178,262.98 = 51,380.53 : x
  2. Step 2: Convert to fraction form
    118,830.04/178,262.98 = 51,380.53/x
  3. Step 3: Cross multiply
    118,830.04x = 178,262.98 × 51,380.53
  4. Step 4: Simplify right side
    118,830.04x = 9,159,245,817.67
  5. Step 5: Solve for x
    x = 9,159,245,817.67/118,830.04
  6. Step 6: Final answer
    x = 77,078.54

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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.