Home / 165,086.37-247,581.09-70,315.56

Finding the Fourth Proportional to 165,086.37, 247,581.09 and 70,315.56

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Solution

The fourth proportional to 165,086.37, 247,581.09 and 70,315.56 is: 105,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,086.37 : 247,581.09 = 70,315.56 : x
  2. Step 2: Convert to fraction form
    165,086.37/247,581.09 = 70,315.56/x
  3. Step 3: Cross multiply
    165,086.37x = 247,581.09 × 70,315.56
  4. Step 4: Simplify right side
    165,086.37x = 17,408,802,988.76
  5. Step 5: Solve for x
    x = 17,408,802,988.76/165,086.37
  6. Step 6: Final answer
    x = 105,452.70

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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.