Home / 163,449.99-245,189.09-45,121.35

Finding the Fourth Proportional to 163,449.99, 245,189.09 and 45,121.35

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Solution

The fourth proportional to 163,449.99, 245,189.09 and 45,121.35 is: 67,685.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,449.99 : 245,189.09 = 45,121.35 : x
  2. Step 2: Convert to fraction form
    163,449.99/245,189.09 = 45,121.35/x
  3. Step 3: Cross multiply
    163,449.99x = 245,189.09 × 45,121.35
  4. Step 4: Simplify right side
    163,449.99x = 11,063,262,746.07
  5. Step 5: Solve for x
    x = 11,063,262,746.07/163,449.99
  6. Step 6: Final answer
    x = 67,685.92

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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.