Home / 136,958.50-189,011.52-76,529.32

Finding the Fourth Proportional to 136,958.50, 189,011.52 and 76,529.32

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Solution

The fourth proportional to 136,958.50, 189,011.52 and 76,529.32 is: 105,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,958.50 : 189,011.52 = 76,529.32 : x
  2. Step 2: Convert to fraction form
    136,958.50/189,011.52 = 76,529.32/x
  3. Step 3: Cross multiply
    136,958.50x = 189,011.52 × 76,529.32
  4. Step 4: Simplify right side
    136,958.50x = 14,464,923,097.77
  5. Step 5: Solve for x
    x = 14,464,923,097.77/136,958.50
  6. Step 6: Final answer
    x = 105,615.37

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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.