Home / 117,153.90-161,684.31-84,475.19

Finding the Fourth Proportional to 117,153.90, 161,684.31 and 84,475.19

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Solution

The fourth proportional to 117,153.90, 161,684.31 and 84,475.19 is: 116,584.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,153.90 : 161,684.31 = 84,475.19 : x
  2. Step 2: Convert to fraction form
    117,153.90/161,684.31 = 84,475.19/x
  3. Step 3: Cross multiply
    117,153.90x = 161,684.31 × 84,475.19
  4. Step 4: Simplify right side
    117,153.90x = 13,658,312,807.27
  5. Step 5: Solve for x
    x = 13,658,312,807.27/117,153.90
  6. Step 6: Final answer
    x = 116,584.36

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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.