Home / 198,748.80-298,130.40-58,521.60

Finding the Fourth Proportional to 198,748.80, 298,130.40 and 58,521.60

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Solution

The fourth proportional to 198,748.80, 298,130.40 and 58,521.60 is: 87,784.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,748.80 : 298,130.40 = 58,521.60 : x
  2. Step 2: Convert to fraction form
    198,748.80/298,130.40 = 58,521.60/x
  3. Step 3: Cross multiply
    198,748.80x = 298,130.40 × 58,521.60
  4. Step 4: Simplify right side
    198,748.80x = 17,447,068,016.64
  5. Step 5: Solve for x
    x = 17,447,068,016.64/198,748.80
  6. Step 6: Final answer
    x = 87,784.52

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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.