Home / 128,746.09-193,172.46-69,512.14

Finding the Fourth Proportional to 128,746.09, 193,172.46 and 69,512.14

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Solution

The fourth proportional to 128,746.09, 193,172.46 and 69,512.14 is: 104,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,746.09 : 193,172.46 = 69,512.14 : x
  2. Step 2: Convert to fraction form
    128,746.09/193,172.46 = 69,512.14/x
  3. Step 3: Cross multiply
    128,746.09x = 193,172.46 × 69,512.14
  4. Step 4: Simplify right side
    128,746.09x = 13,427,831,083.66
  5. Step 5: Solve for x
    x = 13,427,831,083.66/128,746.09
  6. Step 6: Final answer
    x = 104,297.00

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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.