Home / 145,184.80-217,796.64-51,691.36

Finding the Fourth Proportional to 145,184.80, 217,796.64 and 51,691.36

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Solution

The fourth proportional to 145,184.80, 217,796.64 and 51,691.36 is: 77,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,184.80 : 217,796.64 = 51,691.36 : x
  2. Step 2: Convert to fraction form
    145,184.80/217,796.64 = 51,691.36/x
  3. Step 3: Cross multiply
    145,184.80x = 217,796.64 × 51,691.36
  4. Step 4: Simplify right side
    145,184.80x = 11,258,204,525.03
  5. Step 5: Solve for x
    x = 11,258,204,525.03/145,184.80
  6. Step 6: Final answer
    x = 77,543.96

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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.