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Finding the Fourth Proportional to 104,402.47, 144,075.79 and 56,655.80

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Solution

The fourth proportional to 104,402.47, 144,075.79 and 56,655.80 is: 78,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,402.47 : 144,075.79 = 56,655.80 : x
  2. Step 2: Convert to fraction form
    104,402.47/144,075.79 = 56,655.80/x
  3. Step 3: Cross multiply
    104,402.47x = 144,075.79 × 56,655.80
  4. Step 4: Simplify right side
    104,402.47x = 8,162,729,574.09
  5. Step 5: Solve for x
    x = 8,162,729,574.09/104,402.47
  6. Step 6: Final answer
    x = 78,185.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.