Home / 139,725.45-209,461.46-56,562.57

Finding the Fourth Proportional to 139,725.45, 209,461.46 and 56,562.57

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Solution

The fourth proportional to 139,725.45, 209,461.46 and 56,562.57 is: 84,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,725.45 : 209,461.46 = 56,562.57 : x
  2. Step 2: Convert to fraction form
    139,725.45/209,461.46 = 56,562.57/x
  3. Step 3: Cross multiply
    139,725.45x = 209,461.46 × 56,562.57
  4. Step 4: Simplify right side
    139,725.45x = 11,847,678,210.74
  5. Step 5: Solve for x
    x = 11,847,678,210.74/139,725.45
  6. Step 6: Final answer
    x = 84,792.56

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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.