Home / 172,639.12-238,246.44-97,190.32

Finding the Fourth Proportional to 172,639.12, 238,246.44 and 97,190.32

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Solution

The fourth proportional to 172,639.12, 238,246.44 and 97,190.32 is: 134,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,639.12 : 238,246.44 = 97,190.32 : x
  2. Step 2: Convert to fraction form
    172,639.12/238,246.44 = 97,190.32/x
  3. Step 3: Cross multiply
    172,639.12x = 238,246.44 × 97,190.32
  4. Step 4: Simplify right side
    172,639.12x = 23,155,247,742.46
  5. Step 5: Solve for x
    x = 23,155,247,742.46/172,639.12
  6. Step 6: Final answer
    x = 134,125.15

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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.