Home / 158,935.50-219,331.14-87,315.66

Finding the Fourth Proportional to 158,935.50, 219,331.14 and 87,315.66

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Solution

The fourth proportional to 158,935.50, 219,331.14 and 87,315.66 is: 120,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,935.50 : 219,331.14 = 87,315.66 : x
  2. Step 2: Convert to fraction form
    158,935.50/219,331.14 = 87,315.66/x
  3. Step 3: Cross multiply
    158,935.50x = 219,331.14 × 87,315.66
  4. Step 4: Simplify right side
    158,935.50x = 19,151,043,247.65
  5. Step 5: Solve for x
    x = 19,151,043,247.65/158,935.50
  6. Step 6: Final answer
    x = 120,495.69

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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.