Home / 143,262.81-214,598.93-83,918.57

Finding the Fourth Proportional to 143,262.81, 214,598.93 and 83,918.57

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Solution

The fourth proportional to 143,262.81, 214,598.93 and 83,918.57 is: 125,704.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,262.81 : 214,598.93 = 83,918.57 : x
  2. Step 2: Convert to fraction form
    143,262.81/214,598.93 = 83,918.57/x
  3. Step 3: Cross multiply
    143,262.81x = 214,598.93 × 83,918.57
  4. Step 4: Simplify right side
    143,262.81x = 18,008,835,329.13
  5. Step 5: Solve for x
    x = 18,008,835,329.13/143,262.81
  6. Step 6: Final answer
    x = 125,704.89

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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.