Home / 158,720.10-219,037.33-87,104.66

Finding the Fourth Proportional to 158,720.10, 219,037.33 and 87,104.66

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Solution

The fourth proportional to 158,720.10, 219,037.33 and 87,104.66 is: 120,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,720.10 : 219,037.33 = 87,104.66 : x
  2. Step 2: Convert to fraction form
    158,720.10/219,037.33 = 87,104.66/x
  3. Step 3: Cross multiply
    158,720.10x = 219,037.33 × 87,104.66
  4. Step 4: Simplify right side
    158,720.10x = 19,079,171,061.77
  5. Step 5: Solve for x
    x = 19,079,171,061.77/158,720.10
  6. Step 6: Final answer
    x = 120,206.40

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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.