Home / 102,460.05-141,395.67-57,140.91

Finding the Fourth Proportional to 102,460.05, 141,395.67 and 57,140.91

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Solution

The fourth proportional to 102,460.05, 141,395.67 and 57,140.91 is: 78,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,460.05 : 141,395.67 = 57,140.91 : x
  2. Step 2: Convert to fraction form
    102,460.05/141,395.67 = 57,140.91/x
  3. Step 3: Cross multiply
    102,460.05x = 141,395.67 × 57,140.91
  4. Step 4: Simplify right side
    102,460.05x = 8,079,477,253.86
  5. Step 5: Solve for x
    x = 8,079,477,253.86/102,460.05
  6. Step 6: Final answer
    x = 78,854.90

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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.