Home / 113,812.23-170,674.61-78,645.27

Finding the Fourth Proportional to 113,812.23, 170,674.61 and 78,645.27

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Solution

The fourth proportional to 113,812.23, 170,674.61 and 78,645.27 is: 117,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,812.23 : 170,674.61 = 78,645.27 : x
  2. Step 2: Convert to fraction form
    113,812.23/170,674.61 = 78,645.27/x
  3. Step 3: Cross multiply
    113,812.23x = 170,674.61 × 78,645.27
  4. Step 4: Simplify right side
    113,812.23x = 13,422,750,392.37
  5. Step 5: Solve for x
    x = 13,422,750,392.37/113,812.23
  6. Step 6: Final answer
    x = 117,937.68

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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.