Home / 163,540.22-245,215.55-74,746.19

Finding the Fourth Proportional to 163,540.22, 245,215.55 and 74,746.19

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Solution

The fourth proportional to 163,540.22, 245,215.55 and 74,746.19 is: 112,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,540.22 : 245,215.55 = 74,746.19 : x
  2. Step 2: Convert to fraction form
    163,540.22/245,215.55 = 74,746.19/x
  3. Step 3: Cross multiply
    163,540.22x = 245,215.55 × 74,746.19
  4. Step 4: Simplify right side
    163,540.22x = 18,328,928,891.16
  5. Step 5: Solve for x
    x = 18,328,928,891.16/163,540.22
  6. Step 6: Final answer
    x = 112,075.97

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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.