Home / 121,085.26-181,628.04-57,890.53

Finding the Fourth Proportional to 121,085.26, 181,628.04 and 57,890.53

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Solution

The fourth proportional to 121,085.26, 181,628.04 and 57,890.53 is: 86,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,085.26 : 181,628.04 = 57,890.53 : x
  2. Step 2: Convert to fraction form
    121,085.26/181,628.04 = 57,890.53/x
  3. Step 3: Cross multiply
    121,085.26x = 181,628.04 × 57,890.53
  4. Step 4: Simplify right side
    121,085.26x = 10,514,543,498.46
  5. Step 5: Solve for x
    x = 10,514,543,498.46/121,085.26
  6. Step 6: Final answer
    x = 86,835.87

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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.