Home / 198,720.96-298,117.92-65,610.24

Finding the Fourth Proportional to 198,720.96, 298,117.92 and 65,610.24

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Solution

The fourth proportional to 198,720.96, 298,117.92 and 65,610.24 is: 98,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,720.96 : 298,117.92 = 65,610.24 : x
  2. Step 2: Convert to fraction form
    198,720.96/298,117.92 = 65,610.24/x
  3. Step 3: Cross multiply
    198,720.96x = 298,117.92 × 65,610.24
  4. Step 4: Simplify right side
    198,720.96x = 19,559,588,279.50
  5. Step 5: Solve for x
    x = 19,559,588,279.50/198,720.96
  6. Step 6: Final answer
    x = 98,427.40

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1.5x scale

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.