Home / 121,088.28-167,012.46-83,374.68

Finding the Fourth Proportional to 121,088.28, 167,012.46 and 83,374.68

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Solution

The fourth proportional to 121,088.28, 167,012.46 and 83,374.68 is: 114,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,088.28 : 167,012.46 = 83,374.68 : x
  2. Step 2: Convert to fraction form
    121,088.28/167,012.46 = 83,374.68/x
  3. Step 3: Cross multiply
    121,088.28x = 167,012.46 × 83,374.68
  4. Step 4: Simplify right side
    121,088.28x = 13,924,610,408.51
  5. Step 5: Solve for x
    x = 13,924,610,408.51/121,088.28
  6. Step 6: Final answer
    x = 114,995.53

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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.