Home / 159,417.05-219,993.98-87,795.63

Finding the Fourth Proportional to 159,417.05, 219,993.98 and 87,795.63

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Solution

The fourth proportional to 159,417.05, 219,993.98 and 87,795.63 is: 121,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,417.05 : 219,993.98 = 87,795.63 : x
  2. Step 2: Convert to fraction form
    159,417.05/219,993.98 = 87,795.63/x
  3. Step 3: Cross multiply
    159,417.05x = 219,993.98 × 87,795.63
  4. Step 4: Simplify right side
    159,417.05x = 19,314,509,631.33
  5. Step 5: Solve for x
    x = 19,314,509,631.33/159,417.05
  6. Step 6: Final answer
    x = 121,157.12

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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.