Home / 158,947.84-219,336.96-87,330.88

Finding the Fourth Proportional to 158,947.84, 219,336.96 and 87,330.88

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Solution

The fourth proportional to 158,947.84, 219,336.96 and 87,330.88 is: 120,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,947.84 : 219,336.96 = 87,330.88 : x
  2. Step 2: Convert to fraction form
    158,947.84/219,336.96 = 87,330.88/x
  3. Step 3: Cross multiply
    158,947.84x = 219,336.96 × 87,330.88
  4. Step 4: Simplify right side
    158,947.84x = 19,154,889,733.32
  5. Step 5: Solve for x
    x = 19,154,889,733.32/158,947.84
  6. Step 6: Final answer
    x = 120,510.54

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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.