Home / 161,535.69-242,407.22-78,384.33

Finding the Fourth Proportional to 161,535.69, 242,407.22 and 78,384.33

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Solution

The fourth proportional to 161,535.69, 242,407.22 and 78,384.33 is: 117,626.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,535.69 : 242,407.22 = 78,384.33 : x
  2. Step 2: Convert to fraction form
    161,535.69/242,407.22 = 78,384.33/x
  3. Step 3: Cross multiply
    161,535.69x = 242,407.22 × 78,384.33
  4. Step 4: Simplify right side
    161,535.69x = 19,000,927,134.94
  5. Step 5: Solve for x
    x = 19,000,927,134.94/161,535.69
  6. Step 6: Final answer
    x = 117,626.81

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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.