Home / 136,924.14-188,948.58-76,482.78

Finding the Fourth Proportional to 136,924.14, 188,948.58 and 76,482.78

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Solution

The fourth proportional to 136,924.14, 188,948.58 and 76,482.78 is: 105,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,924.14 : 188,948.58 = 76,482.78 : x
  2. Step 2: Convert to fraction form
    136,924.14/188,948.58 = 76,482.78/x
  3. Step 3: Cross multiply
    136,924.14x = 188,948.58 × 76,482.78
  4. Step 4: Simplify right side
    136,924.14x = 14,451,312,675.45
  5. Step 5: Solve for x
    x = 14,451,312,675.45/136,924.14
  6. Step 6: Final answer
    x = 105,542.48

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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.