Home / 149,707.80-206,604.54-86,051.52

Finding the Fourth Proportional to 149,707.80, 206,604.54 and 86,051.52

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Solution

The fourth proportional to 149,707.80, 206,604.54 and 86,051.52 is: 118,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,707.80 : 206,604.54 = 86,051.52 : x
  2. Step 2: Convert to fraction form
    149,707.80/206,604.54 = 86,051.52/x
  3. Step 3: Cross multiply
    149,707.80x = 206,604.54 × 86,051.52
  4. Step 4: Simplify right side
    149,707.80x = 17,778,634,705.90
  5. Step 5: Solve for x
    x = 17,778,634,705.90/149,707.80
  6. Step 6: Final answer
    x = 118,755.57

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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.