Home / 102,363.87-141,258.54-57,039.51

Finding the Fourth Proportional to 102,363.87, 141,258.54 and 57,039.51

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Solution

The fourth proportional to 102,363.87, 141,258.54 and 57,039.51 is: 78,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,363.87 : 141,258.54 = 57,039.51 : x
  2. Step 2: Convert to fraction form
    102,363.87/141,258.54 = 57,039.51/x
  3. Step 3: Cross multiply
    102,363.87x = 141,258.54 × 57,039.51
  4. Step 4: Simplify right side
    102,363.87x = 8,057,317,904.92
  5. Step 5: Solve for x
    x = 8,057,317,904.92/102,363.87
  6. Step 6: Final answer
    x = 78,712.52

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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.