Home / 102,557.11-141,510.77-57,231.54

Finding the Fourth Proportional to 102,557.11, 141,510.77 and 57,231.54

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Solution

The fourth proportional to 102,557.11, 141,510.77 and 57,231.54 is: 78,969.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,557.11 : 141,510.77 = 57,231.54 : x
  2. Step 2: Convert to fraction form
    102,557.11/141,510.77 = 57,231.54/x
  3. Step 3: Cross multiply
    102,557.11x = 141,510.77 × 57,231.54
  4. Step 4: Simplify right side
    102,557.11x = 8,098,879,293.69
  5. Step 5: Solve for x
    x = 8,098,879,293.69/102,557.11
  6. Step 6: Final answer
    x = 78,969.46

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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.