Home / 121,525.20-182,316.96-38,419.20

Finding the Fourth Proportional to 121,525.20, 182,316.96 and 38,419.20

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Solution

The fourth proportional to 121,525.20, 182,316.96 and 38,419.20 is: 57,638.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,525.20 : 182,316.96 = 38,419.20 : x
  2. Step 2: Convert to fraction form
    121,525.20/182,316.96 = 38,419.20/x
  3. Step 3: Cross multiply
    121,525.20x = 182,316.96 × 38,419.20
  4. Step 4: Simplify right side
    121,525.20x = 7,004,471,749.63
  5. Step 5: Solve for x
    x = 7,004,471,749.63/121,525.20
  6. Step 6: Final answer
    x = 57,638.02

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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.