Home / 159,222.42-219,727.31-87,607.05

Finding the Fourth Proportional to 159,222.42, 219,727.31 and 87,607.05

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Solution

The fourth proportional to 159,222.42, 219,727.31 and 87,607.05 is: 120,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,222.42 : 219,727.31 = 87,607.05 : x
  2. Step 2: Convert to fraction form
    159,222.42/219,727.31 = 87,607.05/x
  3. Step 3: Cross multiply
    159,222.42x = 219,727.31 × 87,607.05
  4. Step 4: Simplify right side
    159,222.42x = 19,249,660,995.50
  5. Step 5: Solve for x
    x = 19,249,660,995.50/159,222.42
  6. Step 6: Final answer
    x = 120,897.93

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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.