Home / 109,166.29-163,749.41-30,280.51

Finding the Fourth Proportional to 109,166.29, 163,749.41 and 30,280.51

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Solution

The fourth proportional to 109,166.29, 163,749.41 and 30,280.51 is: 45,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,166.29 : 163,749.41 = 30,280.51 : x
  2. Step 2: Convert to fraction form
    109,166.29/163,749.41 = 30,280.51/x
  3. Step 3: Cross multiply
    109,166.29x = 163,749.41 × 30,280.51
  4. Step 4: Simplify right side
    109,166.29x = 4,958,415,647.00
  5. Step 5: Solve for x
    x = 4,958,415,647.00/109,166.29
  6. Step 6: Final answer
    x = 45,420.76

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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.