Home / 102,619.83-141,613.99-57,298.58

Finding the Fourth Proportional to 102,619.83, 141,613.99 and 57,298.58

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Solution

The fourth proportional to 102,619.83, 141,613.99 and 57,298.58 is: 79,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,619.83 : 141,613.99 = 57,298.58 : x
  2. Step 2: Convert to fraction form
    102,619.83/141,613.99 = 57,298.58/x
  3. Step 3: Cross multiply
    102,619.83x = 141,613.99 × 57,298.58
  4. Step 4: Simplify right side
    102,619.83x = 8,114,280,535.13
  5. Step 5: Solve for x
    x = 8,114,280,535.13/102,619.83
  6. Step 6: Final answer
    x = 79,071.27

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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.