Home / 102,884.18-141,985.69-57,559.47

Finding the Fourth Proportional to 102,884.18, 141,985.69 and 57,559.47

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Solution

The fourth proportional to 102,884.18, 141,985.69 and 57,559.47 is: 79,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,884.18 : 141,985.69 = 57,559.47 : x
  2. Step 2: Convert to fraction form
    102,884.18/141,985.69 = 57,559.47/x
  3. Step 3: Cross multiply
    102,884.18x = 141,985.69 × 57,559.47
  4. Step 4: Simplify right side
    102,884.18x = 8,172,621,063.98
  5. Step 5: Solve for x
    x = 8,172,621,063.98/102,884.18
  6. Step 6: Final answer
    x = 79,435.16

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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.