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Finding the Fourth Proportional to 117,804.32, 162,555.36 and 79,646.96

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Solution

The fourth proportional to 117,804.32, 162,555.36 and 79,646.96 is: 109,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,804.32 : 162,555.36 = 79,646.96 : x
  2. Step 2: Convert to fraction form
    117,804.32/162,555.36 = 79,646.96/x
  3. Step 3: Cross multiply
    117,804.32x = 162,555.36 × 79,646.96
  4. Step 4: Simplify right side
    117,804.32x = 12,947,040,255.71
  5. Step 5: Solve for x
    x = 12,947,040,255.71/117,804.32
  6. Step 6: Final answer
    x = 109,902.93

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1.5x scale

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.