Home / 112,072.64-168,162.36-69,941.28

Finding the Fourth Proportional to 112,072.64, 168,162.36 and 69,941.28

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Solution

The fourth proportional to 112,072.64, 168,162.36 and 69,941.28 is: 104,945.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,072.64 : 168,162.36 = 69,941.28 : x
  2. Step 2: Convert to fraction form
    112,072.64/168,162.36 = 69,941.28/x
  3. Step 3: Cross multiply
    112,072.64x = 168,162.36 × 69,941.28
  4. Step 4: Simplify right side
    112,072.64x = 11,761,490,706.22
  5. Step 5: Solve for x
    x = 11,761,490,706.22/112,072.64
  6. Step 6: Final answer
    x = 104,945.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.