Home / 163,153.19-225,192.79-111,491.21

Finding the Fourth Proportional to 163,153.19, 225,192.79 and 111,491.21

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Solution

The fourth proportional to 163,153.19, 225,192.79 and 111,491.21 is: 153,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,153.19 : 225,192.79 = 111,491.21 : x
  2. Step 2: Convert to fraction form
    163,153.19/225,192.79 = 111,491.21/x
  3. Step 3: Cross multiply
    163,153.19x = 225,192.79 × 111,491.21
  4. Step 4: Simplify right side
    163,153.19x = 25,107,015,235.68
  5. Step 5: Solve for x
    x = 25,107,015,235.68/163,153.19
  6. Step 6: Final answer
    x = 153,886.14

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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.