Home / 120,088.22-165,698.19-72,344.18

Finding the Fourth Proportional to 120,088.22, 165,698.19 and 72,344.18

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Solution

The fourth proportional to 120,088.22, 165,698.19 and 72,344.18 is: 99,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,088.22 : 165,698.19 = 72,344.18 : x
  2. Step 2: Convert to fraction form
    120,088.22/165,698.19 = 72,344.18/x
  3. Step 3: Cross multiply
    120,088.22x = 165,698.19 × 72,344.18
  4. Step 4: Simplify right side
    120,088.22x = 11,987,300,097.28
  5. Step 5: Solve for x
    x = 11,987,300,097.28/120,088.22
  6. Step 6: Final answer
    x = 99,820.79

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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.