Home / 160,761.74-221,861.16-89,141.77

Finding the Fourth Proportional to 160,761.74, 221,861.16 and 89,141.77

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Solution

The fourth proportional to 160,761.74, 221,861.16 and 89,141.77 is: 123,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,761.74 : 221,861.16 = 89,141.77 : x
  2. Step 2: Convert to fraction form
    160,761.74/221,861.16 = 89,141.77/x
  3. Step 3: Cross multiply
    160,761.74x = 221,861.16 × 89,141.77
  4. Step 4: Simplify right side
    160,761.74x = 19,777,094,941.64
  5. Step 5: Solve for x
    x = 19,777,094,941.64/160,761.74
  6. Step 6: Final answer
    x = 123,021.16

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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.