Home / 136,544.28-188,412.50-76,107.76

Finding the Fourth Proportional to 136,544.28, 188,412.50 and 76,107.76

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Solution

The fourth proportional to 136,544.28, 188,412.50 and 76,107.76 is: 105,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,544.28 : 188,412.50 = 76,107.76 : x
  2. Step 2: Convert to fraction form
    136,544.28/188,412.50 = 76,107.76/x
  3. Step 3: Cross multiply
    136,544.28x = 188,412.50 × 76,107.76
  4. Step 4: Simplify right side
    136,544.28x = 14,339,653,331.00
  5. Step 5: Solve for x
    x = 14,339,653,331.00/136,544.28
  6. Step 6: Final answer
    x = 105,018.34

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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.