Home / 163,153.20-225,075-105,810.66

Finding the Fourth Proportional to 163,153.20, 225,075 and 105,810.66

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Solution

The fourth proportional to 163,153.20, 225,075 and 105,810.66 is: 145,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,153.20 : 225,075 = 105,810.66 : x
  2. Step 2: Convert to fraction form
    163,153.20/225,075 = 105,810.66/x
  3. Step 3: Cross multiply
    163,153.20x = 225,075 × 105,810.66
  4. Step 4: Simplify right side
    163,153.20x = 23,815,334,299.50
  5. Step 5: Solve for x
    x = 23,815,334,299.50/163,153.20
  6. Step 6: Final answer
    x = 145,969.15

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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.