Home / 158,826.32-219,178.80-87,205.72

Finding the Fourth Proportional to 158,826.32, 219,178.80 and 87,205.72

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Solution

The fourth proportional to 158,826.32, 219,178.80 and 87,205.72 is: 120,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,826.32 : 219,178.80 = 87,205.72 : x
  2. Step 2: Convert to fraction form
    158,826.32/219,178.80 = 87,205.72/x
  3. Step 3: Cross multiply
    158,826.32x = 219,178.80 × 87,205.72
  4. Step 4: Simplify right side
    158,826.32x = 19,113,645,062.74
  5. Step 5: Solve for x
    x = 19,113,645,062.74/158,826.32
  6. Step 6: Final answer
    x = 120,343.06

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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.