Home / 160,431.30-221,397.81-87,832.98

Finding the Fourth Proportional to 160,431.30, 221,397.81 and 87,832.98

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Solution

The fourth proportional to 160,431.30, 221,397.81 and 87,832.98 is: 121,210.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,431.30 : 221,397.81 = 87,832.98 : x
  2. Step 2: Convert to fraction form
    160,431.30/221,397.81 = 87,832.98/x
  3. Step 3: Cross multiply
    160,431.30x = 221,397.81 × 87,832.98
  4. Step 4: Simplify right side
    160,431.30x = 19,446,028,865.87
  5. Step 5: Solve for x
    x = 19,446,028,865.87/160,431.30
  6. Step 6: Final answer
    x = 121,210.94

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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.