Home / 121,081.39-181,622.23-57,886.65

Finding the Fourth Proportional to 121,081.39, 181,622.23 and 57,886.65

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Solution

The fourth proportional to 121,081.39, 181,622.23 and 57,886.65 is: 86,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,081.39 : 181,622.23 = 57,886.65 : x
  2. Step 2: Convert to fraction form
    121,081.39/181,622.23 = 57,886.65/x
  3. Step 3: Cross multiply
    121,081.39x = 181,622.23 × 57,886.65
  4. Step 4: Simplify right side
    121,081.39x = 10,513,502,315.51
  5. Step 5: Solve for x
    x = 10,513,502,315.51/121,081.39
  6. Step 6: Final answer
    x = 86,830.04

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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.