Home / 102,461.44-141,444-72,271.36

Finding the Fourth Proportional to 102,461.44, 141,444 and 72,271.36

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Solution

The fourth proportional to 102,461.44, 141,444 and 72,271.36 is: 99,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,461.44 : 141,444 = 72,271.36 : x
  2. Step 2: Convert to fraction form
    102,461.44/141,444 = 72,271.36/x
  3. Step 3: Cross multiply
    102,461.44x = 141,444 × 72,271.36
  4. Step 4: Simplify right side
    102,461.44x = 10,222,350,243.84
  5. Step 5: Solve for x
    x = 10,222,350,243.84/102,461.44
  6. Step 6: Final answer
    x = 99,767.78

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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.