Home / 131,109.99-196,666.12-42,363.50

Finding the Fourth Proportional to 131,109.99, 196,666.12 and 42,363.50

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Solution

The fourth proportional to 131,109.99, 196,666.12 and 42,363.50 is: 63,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109.99 : 196,666.12 = 42,363.50 : x
  2. Step 2: Convert to fraction form
    131,109.99/196,666.12 = 42,363.50/x
  3. Step 3: Cross multiply
    131,109.99x = 196,666.12 × 42,363.50
  4. Step 4: Simplify right side
    131,109.99x = 8,331,465,174.62
  5. Step 5: Solve for x
    x = 8,331,465,174.62/131,109.99
  6. Step 6: Final answer
    x = 63,545.62

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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.