Home / 102,690.48-141,708.42-57,368.28

Finding the Fourth Proportional to 102,690.48, 141,708.42 and 57,368.28

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Solution

The fourth proportional to 102,690.48, 141,708.42 and 57,368.28 is: 79,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,690.48 : 141,708.42 = 57,368.28 : x
  2. Step 2: Convert to fraction form
    102,690.48/141,708.42 = 57,368.28/x
  3. Step 3: Cross multiply
    102,690.48x = 141,708.42 × 57,368.28
  4. Step 4: Simplify right side
    102,690.48x = 8,129,568,316.92
  5. Step 5: Solve for x
    x = 8,129,568,316.92/102,690.48
  6. Step 6: Final answer
    x = 79,165.74

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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.