Home / 159,101.07-219,559.43-87,485.73

Finding the Fourth Proportional to 159,101.07, 219,559.43 and 87,485.73

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Solution

The fourth proportional to 159,101.07, 219,559.43 and 87,485.73 is: 120,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,101.07 : 219,559.43 = 87,485.73 : x
  2. Step 2: Convert to fraction form
    159,101.07/219,559.43 = 87,485.73/x
  3. Step 3: Cross multiply
    159,101.07x = 219,559.43 × 87,485.73
  4. Step 4: Simplify right side
    159,101.07x = 19,208,317,011.93
  5. Step 5: Solve for x
    x = 19,208,317,011.93/159,101.07
  6. Step 6: Final answer
    x = 120,730.28

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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.