Home / 102,628.68-141,629.98-57,305.13

Finding the Fourth Proportional to 102,628.68, 141,629.98 and 57,305.13

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Solution

The fourth proportional to 102,628.68, 141,629.98 and 57,305.13 is: 79,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,628.68 : 141,629.98 = 57,305.13 : x
  2. Step 2: Convert to fraction form
    102,628.68/141,629.98 = 57,305.13/x
  3. Step 3: Cross multiply
    102,628.68x = 141,629.98 × 57,305.13
  4. Step 4: Simplify right side
    102,628.68x = 8,116,124,415.80
  5. Step 5: Solve for x
    x = 8,116,124,415.80/102,628.68
  6. Step 6: Final answer
    x = 79,082.42

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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.