Home / 102,642.42-141,638.46-57,316.86

Finding the Fourth Proportional to 102,642.42, 141,638.46 and 57,316.86

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Solution

The fourth proportional to 102,642.42, 141,638.46 and 57,316.86 is: 79,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,642.42 : 141,638.46 = 57,316.86 : x
  2. Step 2: Convert to fraction form
    102,642.42/141,638.46 = 57,316.86/x
  3. Step 3: Cross multiply
    102,642.42x = 141,638.46 × 57,316.86
  4. Step 4: Simplify right side
    102,642.42x = 8,118,271,782.44
  5. Step 5: Solve for x
    x = 8,118,271,782.44/102,642.42
  6. Step 6: Final answer
    x = 79,092.76

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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.