Home / 165,147.12-247,657.28-70,317.18

Finding the Fourth Proportional to 165,147.12, 247,657.28 and 70,317.18

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Solution

The fourth proportional to 165,147.12, 247,657.28 and 70,317.18 is: 105,448.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,147.12 : 247,657.28 = 70,317.18 : x
  2. Step 2: Convert to fraction form
    165,147.12/247,657.28 = 70,317.18/x
  3. Step 3: Cross multiply
    165,147.12x = 247,657.28 × 70,317.18
  4. Step 4: Simplify right side
    165,147.12x = 17,414,561,536.07
  5. Step 5: Solve for x
    x = 17,414,561,536.07/165,147.12
  6. Step 6: Final answer
    x = 105,448.78

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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.