Home / 166,857.18-230,263.72-91,405.68

Finding the Fourth Proportional to 166,857.18, 230,263.72 and 91,405.68

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Solution

The fourth proportional to 166,857.18, 230,263.72 and 91,405.68 is: 126,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,857.18 : 230,263.72 = 91,405.68 : x
  2. Step 2: Convert to fraction form
    166,857.18/230,263.72 = 91,405.68/x
  3. Step 3: Cross multiply
    166,857.18x = 230,263.72 × 91,405.68
  4. Step 4: Simplify right side
    166,857.18x = 21,047,411,905.93
  5. Step 5: Solve for x
    x = 21,047,411,905.93/166,857.18
  6. Step 6: Final answer
    x = 126,140.28

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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.