Home / 159,389.48-219,950.37-91,357.67

Finding the Fourth Proportional to 159,389.48, 219,950.37 and 91,357.67

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Solution

The fourth proportional to 159,389.48, 219,950.37 and 91,357.67 is: 126,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,389.48 : 219,950.37 = 91,357.67 : x
  2. Step 2: Convert to fraction form
    159,389.48/219,950.37 = 91,357.67/x
  3. Step 3: Cross multiply
    159,389.48x = 219,950.37 × 91,357.67
  4. Step 4: Simplify right side
    159,389.48x = 20,094,152,219.09
  5. Step 5: Solve for x
    x = 20,094,152,219.09/159,389.48
  6. Step 6: Final answer
    x = 126,069.51

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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.