Home / 118,857.02-178,173.88-39,915.90

Finding the Fourth Proportional to 118,857.02, 178,173.88 and 39,915.90

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Solution

The fourth proportional to 118,857.02, 178,173.88 and 39,915.90 is: 59,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,857.02 : 178,173.88 = 39,915.90 : x
  2. Step 2: Convert to fraction form
    118,857.02/178,173.88 = 39,915.90/x
  3. Step 3: Cross multiply
    118,857.02x = 178,173.88 × 39,915.90
  4. Step 4: Simplify right side
    118,857.02x = 7,111,970,776.69
  5. Step 5: Solve for x
    x = 7,111,970,776.69/118,857.02
  6. Step 6: Final answer
    x = 59,836.35

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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.