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Finding the Fourth Proportional to 158,900.67, 219,284.24 and 87,282.32

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Solution

The fourth proportional to 158,900.67, 219,284.24 and 87,282.32 is: 120,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,900.67 : 219,284.24 = 87,282.32 : x
  2. Step 2: Convert to fraction form
    158,900.67/219,284.24 = 87,282.32/x
  3. Step 3: Cross multiply
    158,900.67x = 219,284.24 × 87,282.32
  4. Step 4: Simplify right side
    158,900.67x = 19,139,635,673.80
  5. Step 5: Solve for x
    x = 19,139,635,673.80/158,900.67
  6. Step 6: Final answer
    x = 120,450.31

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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.