Home / 110,723.20-165,739.20-87,222.40

Finding the Fourth Proportional to 110,723.20, 165,739.20 and 87,222.40

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Solution

The fourth proportional to 110,723.20, 165,739.20 and 87,222.40 is: 130,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,723.20 : 165,739.20 = 87,222.40 : x
  2. Step 2: Convert to fraction form
    110,723.20/165,739.20 = 87,222.40/x
  3. Step 3: Cross multiply
    110,723.20x = 165,739.20 × 87,222.40
  4. Step 4: Simplify right side
    110,723.20x = 14,456,170,798.08
  5. Step 5: Solve for x
    x = 14,456,170,798.08/110,723.20
  6. Step 6: Final answer
    x = 130,561.35

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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.