Home / 102,779.96-141,837.32-60,339.20

Finding the Fourth Proportional to 102,779.96, 141,837.32 and 60,339.20

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Solution

The fourth proportional to 102,779.96, 141,837.32 and 60,339.20 is: 83,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,779.96 : 141,837.32 = 60,339.20 : x
  2. Step 2: Convert to fraction form
    102,779.96/141,837.32 = 60,339.20/x
  3. Step 3: Cross multiply
    102,779.96x = 141,837.32 × 60,339.20
  4. Step 4: Simplify right side
    102,779.96x = 8,558,350,418.94
  5. Step 5: Solve for x
    x = 8,558,350,418.94/102,779.96
  6. Step 6: Final answer
    x = 83,268.67

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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.