Home / 158,933.13-219,327.81-87,317.77

Finding the Fourth Proportional to 158,933.13, 219,327.81 and 87,317.77

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Solution

The fourth proportional to 158,933.13, 219,327.81 and 87,317.77 is: 120,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,933.13 : 219,327.81 = 87,317.77 : x
  2. Step 2: Convert to fraction form
    158,933.13/219,327.81 = 87,317.77/x
  3. Step 3: Cross multiply
    158,933.13x = 219,327.81 × 87,317.77
  4. Step 4: Simplify right side
    158,933.13x = 19,151,215,047.31
  5. Step 5: Solve for x
    x = 19,151,215,047.31/158,933.13
  6. Step 6: Final answer
    x = 120,498.57

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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.