Home / 121,081.17-181,619.93-54,474.26

Finding the Fourth Proportional to 121,081.17, 181,619.93 and 54,474.26

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Solution

The fourth proportional to 121,081.17, 181,619.93 and 54,474.26 is: 81,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,081.17 : 181,619.93 = 54,474.26 : x
  2. Step 2: Convert to fraction form
    121,081.17/181,619.93 = 54,474.26/x
  3. Step 3: Cross multiply
    121,081.17x = 181,619.93 × 54,474.26
  4. Step 4: Simplify right side
    121,081.17x = 9,893,611,288.00
  5. Step 5: Solve for x
    x = 9,893,611,288.00/121,081.17
  6. Step 6: Final answer
    x = 81,710.57

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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.