Home / 148,810.51-205,360.01-80,828.81

Finding the Fourth Proportional to 148,810.51, 205,360.01 and 80,828.81

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Solution

The fourth proportional to 148,810.51, 205,360.01 and 80,828.81 is: 111,544.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,810.51 : 205,360.01 = 80,828.81 : x
  2. Step 2: Convert to fraction form
    148,810.51/205,360.01 = 80,828.81/x
  3. Step 3: Cross multiply
    148,810.51x = 205,360.01 × 80,828.81
  4. Step 4: Simplify right side
    148,810.51x = 16,599,005,229.89
  5. Step 5: Solve for x
    x = 16,599,005,229.89/148,810.51
  6. Step 6: Final answer
    x = 111,544.58

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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.