Home / 100,707.24-151,101.84-64,723.98

Finding the Fourth Proportional to 100,707.24, 151,101.84 and 64,723.98

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Solution

The fourth proportional to 100,707.24, 151,101.84 and 64,723.98 is: 97,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,707.24 : 151,101.84 = 64,723.98 : x
  2. Step 2: Convert to fraction form
    100,707.24/151,101.84 = 64,723.98/x
  3. Step 3: Cross multiply
    100,707.24x = 151,101.84 × 64,723.98
  4. Step 4: Simplify right side
    100,707.24x = 9,779,912,470.12
  5. Step 5: Solve for x
    x = 9,779,912,470.12/100,707.24
  6. Step 6: Final answer
    x = 97,112.31

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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.