Home / 198,970.02-298,141.56-118,811.61

Finding the Fourth Proportional to 198,970.02, 298,141.56 and 118,811.61

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Solution

The fourth proportional to 198,970.02, 298,141.56 and 118,811.61 is: 178,030.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,970.02 : 298,141.56 = 118,811.61 : x
  2. Step 2: Convert to fraction form
    198,970.02/298,141.56 = 118,811.61/x
  3. Step 3: Cross multiply
    198,970.02x = 298,141.56 × 118,811.61
  4. Step 4: Simplify right side
    198,970.02x = 35,422,678,751.51
  5. Step 5: Solve for x
    x = 35,422,678,751.51/198,970.02
  6. Step 6: Final answer
    x = 178,030.23

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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.