Home / 158,836.14-219,197.34-87,219.18

Finding the Fourth Proportional to 158,836.14, 219,197.34 and 87,219.18

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Solution

The fourth proportional to 158,836.14, 219,197.34 and 87,219.18 is: 120,364.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,836.14 : 219,197.34 = 87,219.18 : x
  2. Step 2: Convert to fraction form
    158,836.14/219,197.34 = 87,219.18/x
  3. Step 3: Cross multiply
    158,836.14x = 219,197.34 × 87,219.18
  4. Step 4: Simplify right side
    158,836.14x = 19,118,212,252.98
  5. Step 5: Solve for x
    x = 19,118,212,252.98/158,836.14
  6. Step 6: Final answer
    x = 120,364.37

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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.