Home / 102,383.29-141,289.64-57,064.19

Finding the Fourth Proportional to 102,383.29, 141,289.64 and 57,064.19

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Solution

The fourth proportional to 102,383.29, 141,289.64 and 57,064.19 is: 78,748.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,383.29 : 141,289.64 = 57,064.19 : x
  2. Step 2: Convert to fraction form
    102,383.29/141,289.64 = 57,064.19/x
  3. Step 3: Cross multiply
    102,383.29x = 141,289.64 × 57,064.19
  4. Step 4: Simplify right side
    102,383.29x = 8,062,578,861.99
  5. Step 5: Solve for x
    x = 8,062,578,861.99/102,383.29
  6. Step 6: Final answer
    x = 78,748.98

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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.