Home / 163,449.12-245,155.32-45,137.28

Finding the Fourth Proportional to 163,449.12, 245,155.32 and 45,137.28

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Solution

The fourth proportional to 163,449.12, 245,155.32 and 45,137.28 is: 67,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,449.12 : 245,155.32 = 45,137.28 : x
  2. Step 2: Convert to fraction form
    163,449.12/245,155.32 = 45,137.28/x
  3. Step 3: Cross multiply
    163,449.12x = 245,155.32 × 45,137.28
  4. Step 4: Simplify right side
    163,449.12x = 11,065,644,322.33
  5. Step 5: Solve for x
    x = 11,065,644,322.33/163,449.12
  6. Step 6: Final answer
    x = 67,700.85

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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.