Home / 102,402.08-141,315.51-57,082.94

Finding the Fourth Proportional to 102,402.08, 141,315.51 and 57,082.94

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Solution

The fourth proportional to 102,402.08, 141,315.51 and 57,082.94 is: 78,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,402.08 : 141,315.51 = 57,082.94 : x
  2. Step 2: Convert to fraction form
    102,402.08/141,315.51 = 57,082.94/x
  3. Step 3: Cross multiply
    102,402.08x = 141,315.51 × 57,082.94
  4. Step 4: Simplify right side
    102,402.08x = 8,066,704,778.40
  5. Step 5: Solve for x
    x = 8,066,704,778.40/102,402.08
  6. Step 6: Final answer
    x = 78,774.81

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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.