Home / 163,730.82-245,661.84-51,428.40

Finding the Fourth Proportional to 163,730.82, 245,661.84 and 51,428.40

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Solution

The fourth proportional to 163,730.82, 245,661.84 and 51,428.40 is: 77,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,730.82 : 245,661.84 = 51,428.40 : x
  2. Step 2: Convert to fraction form
    163,730.82/245,661.84 = 51,428.40/x
  3. Step 3: Cross multiply
    163,730.82x = 245,661.84 × 51,428.40
  4. Step 4: Simplify right side
    163,730.82x = 12,633,995,372.26
  5. Step 5: Solve for x
    x = 12,633,995,372.26/163,730.82
  6. Step 6: Final answer
    x = 77,163.21

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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.