Home / 166,192.21-249,288.32-77,507.74

Finding the Fourth Proportional to 166,192.21, 249,288.32 and 77,507.74

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Solution

The fourth proportional to 166,192.21, 249,288.32 and 77,507.74 is: 116,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,192.21 : 249,288.32 = 77,507.74 : x
  2. Step 2: Convert to fraction form
    166,192.21/249,288.32 = 77,507.74/x
  3. Step 3: Cross multiply
    166,192.21x = 249,288.32 × 77,507.74
  4. Step 4: Simplify right side
    166,192.21x = 19,321,774,291.60
  5. Step 5: Solve for x
    x = 19,321,774,291.60/166,192.21
  6. Step 6: Final answer
    x = 116,261.61

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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.