Home / 136,956.03-188,988.56-75,699.64

Finding the Fourth Proportional to 136,956.03, 188,988.56 and 75,699.64

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Solution

The fourth proportional to 136,956.03, 188,988.56 and 75,699.64 is: 104,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,956.03 : 188,988.56 = 75,699.64 : x
  2. Step 2: Convert to fraction form
    136,956.03/188,988.56 = 75,699.64/x
  3. Step 3: Cross multiply
    136,956.03x = 188,988.56 × 75,699.64
  4. Step 4: Simplify right side
    136,956.03x = 14,306,365,577.62
  5. Step 5: Solve for x
    x = 14,306,365,577.62/136,956.03
  6. Step 6: Final answer
    x = 104,459.56

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1.5x scale

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.