Home / 136,529.64-188,388.08-76,087.04

Finding the Fourth Proportional to 136,529.64, 188,388.08 and 76,087.04

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Solution

The fourth proportional to 136,529.64, 188,388.08 and 76,087.04 is: 104,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,529.64 : 188,388.08 = 76,087.04 : x
  2. Step 2: Convert to fraction form
    136,529.64/188,388.08 = 76,087.04/x
  3. Step 3: Cross multiply
    136,529.64x = 188,388.08 × 76,087.04
  4. Step 4: Simplify right side
    136,529.64x = 14,333,891,378.48
  5. Step 5: Solve for x
    x = 14,333,891,378.48/136,529.64
  6. Step 6: Final answer
    x = 104,987.40

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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.