Home / 165,938.10-248,907.15-77,364.60

Finding the Fourth Proportional to 165,938.10, 248,907.15 and 77,364.60

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Solution

The fourth proportional to 165,938.10, 248,907.15 and 77,364.60 is: 116,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,938.10 : 248,907.15 = 77,364.60 : x
  2. Step 2: Convert to fraction form
    165,938.10/248,907.15 = 77,364.60/x
  3. Step 3: Cross multiply
    165,938.10x = 248,907.15 × 77,364.60
  4. Step 4: Simplify right side
    165,938.10x = 19,256,602,096.89
  5. Step 5: Solve for x
    x = 19,256,602,096.89/165,938.10
  6. Step 6: Final answer
    x = 116,046.90

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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.