Home / 223,101.28-307,878.06-121,124.72

Finding the Fourth Proportional to 223,101.28, 307,878.06 and 121,124.72

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Solution

The fourth proportional to 223,101.28, 307,878.06 and 121,124.72 is: 167,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,101.28 : 307,878.06 = 121,124.72 : x
  2. Step 2: Convert to fraction form
    223,101.28/307,878.06 = 121,124.72/x
  3. Step 3: Cross multiply
    223,101.28x = 307,878.06 × 121,124.72
  4. Step 4: Simplify right side
    223,101.28x = 37,291,642,537.25
  5. Step 5: Solve for x
    x = 37,291,642,537.25/223,101.28
  6. Step 6: Final answer
    x = 167,151.18

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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.