Home / 218,541.29-301,582.43-121,745.01

Finding the Fourth Proportional to 218,541.29, 301,582.43 and 121,745.01

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Solution

The fourth proportional to 218,541.29, 301,582.43 and 121,745.01 is: 168,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,541.29 : 301,582.43 = 121,745.01 : x
  2. Step 2: Convert to fraction form
    218,541.29/301,582.43 = 121,745.01/x
  3. Step 3: Cross multiply
    218,541.29x = 301,582.43 × 121,745.01
  4. Step 4: Simplify right side
    218,541.29x = 36,716,155,293.49
  5. Step 5: Solve for x
    x = 36,716,155,293.49/218,541.29
  6. Step 6: Final answer
    x = 168,005.58

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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.