Home / 102,303.43-141,129.84-79,486.27

Finding the Fourth Proportional to 102,303.43, 141,129.84 and 79,486.27

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Solution

The fourth proportional to 102,303.43, 141,129.84 and 79,486.27 is: 109,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,303.43 : 141,129.84 = 79,486.27 : x
  2. Step 2: Convert to fraction form
    102,303.43/141,129.84 = 79,486.27/x
  3. Step 3: Cross multiply
    102,303.43x = 141,129.84 × 79,486.27
  4. Step 4: Simplify right side
    102,303.43x = 11,217,884,567.30
  5. Step 5: Solve for x
    x = 11,217,884,567.30/102,303.43
  6. Step 6: Final answer
    x = 109,653.06

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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.