Home / 148,735.85-205,254.81-80,752.28

Finding the Fourth Proportional to 148,735.85, 205,254.81 and 80,752.28

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Solution

The fourth proportional to 148,735.85, 205,254.81 and 80,752.28 is: 111,437.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,735.85 : 205,254.81 = 80,752.28 : x
  2. Step 2: Convert to fraction form
    148,735.85/205,254.81 = 80,752.28/x
  3. Step 3: Cross multiply
    148,735.85x = 205,254.81 × 80,752.28
  4. Step 4: Simplify right side
    148,735.85x = 16,574,792,862.19
  5. Step 5: Solve for x
    x = 16,574,792,862.19/148,735.85
  6. Step 6: Final answer
    x = 111,437.78

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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.