Home / 121,005.65-181,508.27-57,633.57

Finding the Fourth Proportional to 121,005.65, 181,508.27 and 57,633.57

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Solution

The fourth proportional to 121,005.65, 181,508.27 and 57,633.57 is: 86,450.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,005.65 : 181,508.27 = 57,633.57 : x
  2. Step 2: Convert to fraction form
    121,005.65/181,508.27 = 57,633.57/x
  3. Step 3: Cross multiply
    121,005.65x = 181,508.27 × 57,633.57
  4. Step 4: Simplify right side
    121,005.65x = 10,460,969,296.46
  5. Step 5: Solve for x
    x = 10,460,969,296.46/121,005.65
  6. Step 6: Final answer
    x = 86,450.26

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1.5x scale

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.