Home / 100,686.46-151,021.79-58,539.68

Finding the Fourth Proportional to 100,686.46, 151,021.79 and 58,539.68

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Solution

The fourth proportional to 100,686.46, 151,021.79 and 58,539.68 is: 87,804.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,686.46 : 151,021.79 = 58,539.68 : x
  2. Step 2: Convert to fraction form
    100,686.46/151,021.79 = 58,539.68/x
  3. Step 3: Cross multiply
    100,686.46x = 151,021.79 × 58,539.68
  4. Step 4: Simplify right side
    100,686.46x = 8,840,767,259.63
  5. Step 5: Solve for x
    x = 8,840,767,259.63/100,686.46
  6. Step 6: Final answer
    x = 87,804.93

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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.