Home / 170,139.87-255,221.55-57,774.24

Finding the Fourth Proportional to 170,139.87, 255,221.55 and 57,774.24

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Solution

The fourth proportional to 170,139.87, 255,221.55 and 57,774.24 is: 86,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,139.87 : 255,221.55 = 57,774.24 : x
  2. Step 2: Convert to fraction form
    170,139.87/255,221.55 = 57,774.24/x
  3. Step 3: Cross multiply
    170,139.87x = 255,221.55 × 57,774.24
  4. Step 4: Simplify right side
    170,139.87x = 14,745,231,082.87
  5. Step 5: Solve for x
    x = 14,745,231,082.87/170,139.87
  6. Step 6: Final answer
    x = 86,665.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.