Home / 102,483.87-141,427.93-57,164.78

Finding the Fourth Proportional to 102,483.87, 141,427.93 and 57,164.78

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Solution

The fourth proportional to 102,483.87, 141,427.93 and 57,164.78 is: 78,887.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,483.87 : 141,427.93 = 57,164.78 : x
  2. Step 2: Convert to fraction form
    102,483.87/141,427.93 = 57,164.78/x
  3. Step 3: Cross multiply
    102,483.87x = 141,427.93 × 57,164.78
  4. Step 4: Simplify right side
    102,483.87x = 8,084,696,218.48
  5. Step 5: Solve for x
    x = 8,084,696,218.48/102,483.87
  6. Step 6: Final answer
    x = 78,887.50

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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.