Home / 149,009.16-205,628.58-81,941.16

Finding the Fourth Proportional to 149,009.16, 205,628.58 and 81,941.16

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Solution

The fourth proportional to 149,009.16, 205,628.58 and 81,941.16 is: 113,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,009.16 : 205,628.58 = 81,941.16 : x
  2. Step 2: Convert to fraction form
    149,009.16/205,628.58 = 81,941.16/x
  3. Step 3: Cross multiply
    149,009.16x = 205,628.58 × 81,941.16
  4. Step 4: Simplify right side
    149,009.16x = 16,849,444,374.35
  5. Step 5: Solve for x
    x = 16,849,444,374.35/149,009.16
  6. Step 6: Final answer
    x = 113,076.57

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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.