Home / 149,109.84-205,693.20-88,637.49

Finding the Fourth Proportional to 149,109.84, 205,693.20 and 88,637.49

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Solution

The fourth proportional to 149,109.84, 205,693.20 and 88,637.49 is: 122,273.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,109.84 : 205,693.20 = 88,637.49 : x
  2. Step 2: Convert to fraction form
    149,109.84/205,693.20 = 88,637.49/x
  3. Step 3: Cross multiply
    149,109.84x = 205,693.20 × 88,637.49
  4. Step 4: Simplify right side
    149,109.84x = 18,232,128,958.07
  5. Step 5: Solve for x
    x = 18,232,128,958.07/149,109.84
  6. Step 6: Final answer
    x = 122,273.14

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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.