Home / 102,503.21-141,455.54-57,180.83

Finding the Fourth Proportional to 102,503.21, 141,455.54 and 57,180.83

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Solution

The fourth proportional to 102,503.21, 141,455.54 and 57,180.83 is: 78,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,503.21 : 141,455.54 = 57,180.83 : x
  2. Step 2: Convert to fraction form
    102,503.21/141,455.54 = 57,180.83/x
  3. Step 3: Cross multiply
    102,503.21x = 141,455.54 × 57,180.83
  4. Step 4: Simplify right side
    102,503.21x = 8,088,544,899.39
  5. Step 5: Solve for x
    x = 8,088,544,899.39/102,503.21
  6. Step 6: Final answer
    x = 78,910.16

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1.5x scale

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.