Home / 145,761.06-218,592.68-55,782.79

Finding the Fourth Proportional to 145,761.06, 218,592.68 and 55,782.79

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Solution

The fourth proportional to 145,761.06, 218,592.68 and 55,782.79 is: 83,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,761.06 : 218,592.68 = 55,782.79 : x
  2. Step 2: Convert to fraction form
    145,761.06/218,592.68 = 55,782.79/x
  3. Step 3: Cross multiply
    145,761.06x = 218,592.68 × 55,782.79
  4. Step 4: Simplify right side
    145,761.06x = 12,193,709,563.98
  5. Step 5: Solve for x
    x = 12,193,709,563.98/145,761.06
  6. Step 6: Final answer
    x = 83,655.47

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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.