Home / 153,935.88-212,435.13-85,950.56

Finding the Fourth Proportional to 153,935.88, 212,435.13 and 85,950.56

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Solution

The fourth proportional to 153,935.88, 212,435.13 and 85,950.56 is: 118,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,935.88 : 212,435.13 = 85,950.56 : x
  2. Step 2: Convert to fraction form
    153,935.88/212,435.13 = 85,950.56/x
  3. Step 3: Cross multiply
    153,935.88x = 212,435.13 × 85,950.56
  4. Step 4: Simplify right side
    153,935.88x = 18,258,917,325.00
  5. Step 5: Solve for x
    x = 18,258,917,325.00/153,935.88
  6. Step 6: Final answer
    x = 118,613.78

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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.