Home / 117,555.23-162,275.86-79,366.49

Finding the Fourth Proportional to 117,555.23, 162,275.86 and 79,366.49

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Solution

The fourth proportional to 117,555.23, 162,275.86 and 79,366.49 is: 109,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,555.23 : 162,275.86 = 79,366.49 : x
  2. Step 2: Convert to fraction form
    117,555.23/162,275.86 = 79,366.49/x
  3. Step 3: Cross multiply
    117,555.23x = 162,275.86 × 79,366.49
  4. Step 4: Simplify right side
    117,555.23x = 12,879,265,419.93
  5. Step 5: Solve for x
    x = 12,879,265,419.93/117,555.23
  6. Step 6: Final answer
    x = 109,559.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.