Home / 159,435.89-220,013.21-99,005.23

Finding the Fourth Proportional to 159,435.89, 220,013.21 and 99,005.23

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Solution

The fourth proportional to 159,435.89, 220,013.21 and 99,005.23 is: 136,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,435.89 : 220,013.21 = 99,005.23 : x
  2. Step 2: Convert to fraction form
    159,435.89/220,013.21 = 99,005.23/x
  3. Step 3: Cross multiply
    159,435.89x = 220,013.21 × 99,005.23
  4. Step 4: Simplify right side
    159,435.89x = 21,782,457,661.54
  5. Step 5: Solve for x
    x = 21,782,457,661.54/159,435.89
  6. Step 6: Final answer
    x = 136,622.05

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1.5x scale

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.