Home / 102,431.54-141,364.81-62,155.51

Finding the Fourth Proportional to 102,431.54, 141,364.81 and 62,155.51

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Solution

The fourth proportional to 102,431.54, 141,364.81 and 62,155.51 is: 85,780.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,431.54 : 141,364.81 = 62,155.51 : x
  2. Step 2: Convert to fraction form
    102,431.54/141,364.81 = 62,155.51/x
  3. Step 3: Cross multiply
    102,431.54x = 141,364.81 × 62,155.51
  4. Step 4: Simplify right side
    102,431.54x = 8,786,601,663.58
  5. Step 5: Solve for x
    x = 8,786,601,663.58/102,431.54
  6. Step 6: Final answer
    x = 85,780.23

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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.