Home / 110,519.12-165,729.96-31,615.40

Finding the Fourth Proportional to 110,519.12, 165,729.96 and 31,615.40

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Solution

The fourth proportional to 110,519.12, 165,729.96 and 31,615.40 is: 47,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,519.12 : 165,729.96 = 31,615.40 : x
  2. Step 2: Convert to fraction form
    110,519.12/165,729.96 = 31,615.40/x
  3. Step 3: Cross multiply
    110,519.12x = 165,729.96 × 31,615.40
  4. Step 4: Simplify right side
    110,519.12x = 5,239,618,977.38
  5. Step 5: Solve for x
    x = 5,239,618,977.38/110,519.12
  6. Step 6: Final answer
    x = 47,409.16

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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.