Home / 101,815.99-140,513.79-56,502.57

Finding the Fourth Proportional to 101,815.99, 140,513.79 and 56,502.57

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Solution

The fourth proportional to 101,815.99, 140,513.79 and 56,502.57 is: 77,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,815.99 : 140,513.79 = 56,502.57 : x
  2. Step 2: Convert to fraction form
    101,815.99/140,513.79 = 56,502.57/x
  3. Step 3: Cross multiply
    101,815.99x = 140,513.79 × 56,502.57
  4. Step 4: Simplify right side
    101,815.99x = 7,939,390,255.44
  5. Step 5: Solve for x
    x = 7,939,390,255.44/101,815.99
  6. Step 6: Final answer
    x = 77,977.83

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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.