Home / 160,320.71-221,234.46-87,722.03

Finding the Fourth Proportional to 160,320.71, 221,234.46 and 87,722.03

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Solution

The fourth proportional to 160,320.71, 221,234.46 and 87,722.03 is: 121,051.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,320.71 : 221,234.46 = 87,722.03 : x
  2. Step 2: Convert to fraction form
    160,320.71/221,234.46 = 87,722.03/x
  3. Step 3: Cross multiply
    160,320.71x = 221,234.46 × 87,722.03
  4. Step 4: Simplify right side
    160,320.71x = 19,407,134,830.98
  5. Step 5: Solve for x
    x = 19,407,134,830.98/160,320.71
  6. Step 6: Final answer
    x = 121,051.96

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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.