Home / 117,705.96-162,515.97-72,442.35

Finding the Fourth Proportional to 117,705.96, 162,515.97 and 72,442.35

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Solution

The fourth proportional to 117,705.96, 162,515.97 and 72,442.35 is: 100,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,705.96 : 162,515.97 = 72,442.35 : x
  2. Step 2: Convert to fraction form
    117,705.96/162,515.97 = 72,442.35/x
  3. Step 3: Cross multiply
    117,705.96x = 162,515.97 × 72,442.35
  4. Step 4: Simplify right side
    117,705.96x = 11,773,038,779.33
  5. Step 5: Solve for x
    x = 11,773,038,779.33/117,705.96
  6. Step 6: Final answer
    x = 100,020.75

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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.