Home / 143,988.50-215,981.84-49,172.94

Finding the Fourth Proportional to 143,988.50, 215,981.84 and 49,172.94

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Solution

The fourth proportional to 143,988.50, 215,981.84 and 49,172.94 is: 73,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,988.50 : 215,981.84 = 49,172.94 : x
  2. Step 2: Convert to fraction form
    143,988.50/215,981.84 = 49,172.94/x
  3. Step 3: Cross multiply
    143,988.50x = 215,981.84 × 49,172.94
  4. Step 4: Simplify right side
    143,988.50x = 10,620,462,182.34
  5. Step 5: Solve for x
    x = 10,620,462,182.34/143,988.50
  6. Step 6: Final answer
    x = 73,759.10

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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.