Home / 161,878.03-223,688.72-154,100.21

Finding the Fourth Proportional to 161,878.03, 223,688.72 and 154,100.21

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Solution

The fourth proportional to 161,878.03, 223,688.72 and 154,100.21 is: 212,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,878.03 : 223,688.72 = 154,100.21 : x
  2. Step 2: Convert to fraction form
    161,878.03/223,688.72 = 154,100.21/x
  3. Step 3: Cross multiply
    161,878.03x = 223,688.72 × 154,100.21
  4. Step 4: Simplify right side
    161,878.03x = 34,470,477,993.44
  5. Step 5: Solve for x
    x = 34,470,477,993.44/161,878.03
  6. Step 6: Final answer
    x = 212,941.06

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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.