Home / 136,021.54-187,705.97-75,590.63

Finding the Fourth Proportional to 136,021.54, 187,705.97 and 75,590.63

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Solution

The fourth proportional to 136,021.54, 187,705.97 and 75,590.63 is: 104,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,021.54 : 187,705.97 = 75,590.63 : x
  2. Step 2: Convert to fraction form
    136,021.54/187,705.97 = 75,590.63/x
  3. Step 3: Cross multiply
    136,021.54x = 187,705.97 × 75,590.63
  4. Step 4: Simplify right side
    136,021.54x = 14,188,812,527.06
  5. Step 5: Solve for x
    x = 14,188,812,527.06/136,021.54
  6. Step 6: Final answer
    x = 104,312.98

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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.