Home / 161,574.73-242,362.23-77,315.02

Finding the Fourth Proportional to 161,574.73, 242,362.23 and 77,315.02

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Solution

The fourth proportional to 161,574.73, 242,362.23 and 77,315.02 is: 115,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,574.73 : 242,362.23 = 77,315.02 : x
  2. Step 2: Convert to fraction form
    161,574.73/242,362.23 = 77,315.02/x
  3. Step 3: Cross multiply
    161,574.73x = 242,362.23 × 77,315.02
  4. Step 4: Simplify right side
    161,574.73x = 18,738,240,659.69
  5. Step 5: Solve for x
    x = 18,738,240,659.69/161,574.73
  6. Step 6: Final answer
    x = 115,972.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.