Home / 145,911.11-218,868.85-40,730.63

Finding the Fourth Proportional to 145,911.11, 218,868.85 and 40,730.63

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Solution

The fourth proportional to 145,911.11, 218,868.85 and 40,730.63 is: 61,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,911.11 : 218,868.85 = 40,730.63 : x
  2. Step 2: Convert to fraction form
    145,911.11/218,868.85 = 40,730.63/x
  3. Step 3: Cross multiply
    145,911.11x = 218,868.85 × 40,730.63
  4. Step 4: Simplify right side
    145,911.11x = 8,914,664,951.70
  5. Step 5: Solve for x
    x = 8,914,664,951.70/145,911.11
  6. Step 6: Final answer
    x = 61,096.55

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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.