Home / 197,421.18-272,441.20-106,777.12

Finding the Fourth Proportional to 197,421.18, 272,441.20 and 106,777.12

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Solution

The fourth proportional to 197,421.18, 272,441.20 and 106,777.12 is: 147,352.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,421.18 : 272,441.20 = 106,777.12 : x
  2. Step 2: Convert to fraction form
    197,421.18/272,441.20 = 106,777.12/x
  3. Step 3: Cross multiply
    197,421.18x = 272,441.20 × 106,777.12
  4. Step 4: Simplify right side
    197,421.18x = 29,090,486,705.34
  5. Step 5: Solve for x
    x = 29,090,486,705.34/197,421.18
  6. Step 6: Final answer
    x = 147,352.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.