Home / 221,084.23-305,009.63-136,053.67

Finding the Fourth Proportional to 221,084.23, 305,009.63 and 136,053.67

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Solution

The fourth proportional to 221,084.23, 305,009.63 and 136,053.67 is: 187,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,084.23 : 305,009.63 = 136,053.67 : x
  2. Step 2: Convert to fraction form
    221,084.23/305,009.63 = 136,053.67/x
  3. Step 3: Cross multiply
    221,084.23x = 305,009.63 × 136,053.67
  4. Step 4: Simplify right side
    221,084.23x = 41,497,679,546.84
  5. Step 5: Solve for x
    x = 41,497,679,546.84/221,084.23
  6. Step 6: Final answer
    x = 187,700.77

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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.