Home / 161,811.40-242,717.10-105,824.20

Finding the Fourth Proportional to 161,811.40, 242,717.10 and 105,824.20

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Solution

The fourth proportional to 161,811.40, 242,717.10 and 105,824.20 is: 158,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,811.40 : 242,717.10 = 105,824.20 : x
  2. Step 2: Convert to fraction form
    161,811.40/242,717.10 = 105,824.20/x
  3. Step 3: Cross multiply
    161,811.40x = 242,717.10 × 105,824.20
  4. Step 4: Simplify right side
    161,811.40x = 25,685,342,933.82
  5. Step 5: Solve for x
    x = 25,685,342,933.82/161,811.40
  6. Step 6: Final answer
    x = 158,736.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.