Home / 159,015.18-219,349.58-99,295.50

Finding the Fourth Proportional to 159,015.18, 219,349.58 and 99,295.50

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Solution

The fourth proportional to 159,015.18, 219,349.58 and 99,295.50 is: 136,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,015.18 : 219,349.58 = 99,295.50 : x
  2. Step 2: Convert to fraction form
    159,015.18/219,349.58 = 99,295.50/x
  3. Step 3: Cross multiply
    159,015.18x = 219,349.58 × 99,295.50
  4. Step 4: Simplify right side
    159,015.18x = 21,780,425,724.41
  5. Step 5: Solve for x
    x = 21,780,425,724.41/159,015.18
  6. Step 6: Final answer
    x = 136,970.73

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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.