Home / 102,968.79-142,096.26-57,646.56

Finding the Fourth Proportional to 102,968.79, 142,096.26 and 57,646.56

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Solution

The fourth proportional to 102,968.79, 142,096.26 and 57,646.56 is: 79,551.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,968.79 : 142,096.26 = 57,646.56 : x
  2. Step 2: Convert to fraction form
    102,968.79/142,096.26 = 57,646.56/x
  3. Step 3: Cross multiply
    102,968.79x = 142,096.26 × 57,646.56
  4. Step 4: Simplify right side
    102,968.79x = 8,191,360,577.87
  5. Step 5: Solve for x
    x = 8,191,360,577.87/102,968.79
  6. Step 6: Final answer
    x = 79,551.88

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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.