Home / 134,785.90-186,004-74,360.30

Finding the Fourth Proportional to 134,785.90, 186,004 and 74,360.30

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Solution

The fourth proportional to 134,785.90, 186,004 and 74,360.30 is: 102,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,785.90 : 186,004 = 74,360.30 : x
  2. Step 2: Convert to fraction form
    134,785.90/186,004 = 74,360.30/x
  3. Step 3: Cross multiply
    134,785.90x = 186,004 × 74,360.30
  4. Step 4: Simplify right side
    134,785.90x = 13,831,313,241.20
  5. Step 5: Solve for x
    x = 13,831,313,241.20/134,785.90
  6. Step 6: Final answer
    x = 102,616.91

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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.