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Finding the Fourth Proportional to 101,186.65, 151,779.98 and 54,530.65

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Solution

The fourth proportional to 101,186.65, 151,779.98 and 54,530.65 is: 81,795.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,186.65 : 151,779.98 = 54,530.65 : x
  2. Step 2: Convert to fraction form
    101,186.65/151,779.98 = 54,530.65/x
  3. Step 3: Cross multiply
    101,186.65x = 151,779.98 × 54,530.65
  4. Step 4: Simplify right side
    101,186.65x = 8,276,660,693.73
  5. Step 5: Solve for x
    x = 8,276,660,693.73/101,186.65
  6. Step 6: Final answer
    x = 81,795.98

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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.