Home / 159,637.37-220,301.29-87,039.66

Finding the Fourth Proportional to 159,637.37, 220,301.29 and 87,039.66

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Solution

The fourth proportional to 159,637.37, 220,301.29 and 87,039.66 is: 120,115.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,637.37 : 220,301.29 = 87,039.66 : x
  2. Step 2: Convert to fraction form
    159,637.37/220,301.29 = 87,039.66/x
  3. Step 3: Cross multiply
    159,637.37x = 220,301.29 × 87,039.66
  4. Step 4: Simplify right side
    159,637.37x = 19,174,949,161.56
  5. Step 5: Solve for x
    x = 19,174,949,161.56/159,637.37
  6. Step 6: Final answer
    x = 120,115.67

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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.