Home / 102,403.08-141,316.89-57,083.94

Finding the Fourth Proportional to 102,403.08, 141,316.89 and 57,083.94

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Solution

The fourth proportional to 102,403.08, 141,316.89 and 57,083.94 is: 78,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,403.08 : 141,316.89 = 57,083.94 : x
  2. Step 2: Convert to fraction form
    102,403.08/141,316.89 = 57,083.94/x
  3. Step 3: Cross multiply
    102,403.08x = 141,316.89 × 57,083.94
  4. Step 4: Simplify right side
    102,403.08x = 8,066,924,869.75
  5. Step 5: Solve for x
    x = 8,066,924,869.75/102,403.08
  6. Step 6: Final answer
    x = 78,776.19

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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.