Home / 111,477.30-153,966.44-73,407.04

Finding the Fourth Proportional to 111,477.30, 153,966.44 and 73,407.04

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Solution

The fourth proportional to 111,477.30, 153,966.44 and 73,407.04 is: 101,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,477.30 : 153,966.44 = 73,407.04 : x
  2. Step 2: Convert to fraction form
    111,477.30/153,966.44 = 73,407.04/x
  3. Step 3: Cross multiply
    111,477.30x = 153,966.44 × 73,407.04
  4. Step 4: Simplify right side
    111,477.30x = 11,302,220,619.74
  5. Step 5: Solve for x
    x = 11,302,220,619.74/111,477.30
  6. Step 6: Final answer
    x = 101,385.85

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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.