Home / 158,991.05-219,411.12-87,372.27

Finding the Fourth Proportional to 158,991.05, 219,411.12 and 87,372.27

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Solution

The fourth proportional to 158,991.05, 219,411.12 and 87,372.27 is: 120,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,991.05 : 219,411.12 = 87,372.27 : x
  2. Step 2: Convert to fraction form
    158,991.05/219,411.12 = 87,372.27/x
  3. Step 3: Cross multiply
    158,991.05x = 219,411.12 × 87,372.27
  4. Step 4: Simplify right side
    158,991.05x = 19,170,447,069.11
  5. Step 5: Solve for x
    x = 19,170,447,069.11/158,991.05
  6. Step 6: Final answer
    x = 120,575.64

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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.