Home / 209,140.08-313,711.16-51,368.56

Finding the Fourth Proportional to 209,140.08, 313,711.16 and 51,368.56

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Solution

The fourth proportional to 209,140.08, 313,711.16 and 51,368.56 is: 77,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,140.08 : 313,711.16 = 51,368.56 : x
  2. Step 2: Convert to fraction form
    209,140.08/313,711.16 = 51,368.56/x
  3. Step 3: Cross multiply
    209,140.08x = 313,711.16 × 51,368.56
  4. Step 4: Simplify right side
    209,140.08x = 16,114,890,545.13
  5. Step 5: Solve for x
    x = 16,114,890,545.13/209,140.08
  6. Step 6: Final answer
    x = 77,053.10

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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.