Home / 102,464.48-141,400.70-57,142.51

Finding the Fourth Proportional to 102,464.48, 141,400.70 and 57,142.51

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Solution

The fourth proportional to 102,464.48, 141,400.70 and 57,142.51 is: 78,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,464.48 : 141,400.70 = 57,142.51 : x
  2. Step 2: Convert to fraction form
    102,464.48/141,400.70 = 57,142.51/x
  3. Step 3: Cross multiply
    102,464.48x = 141,400.70 × 57,142.51
  4. Step 4: Simplify right side
    102,464.48x = 8,079,989,921.04
  5. Step 5: Solve for x
    x = 8,079,989,921.04/102,464.48
  6. Step 6: Final answer
    x = 78,856.50

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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.