Home / 147,333.43-203,344.53-86,918.87

Finding the Fourth Proportional to 147,333.43, 203,344.53 and 86,918.87

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Solution

The fourth proportional to 147,333.43, 203,344.53 and 86,918.87 is: 119,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,333.43 : 203,344.53 = 86,918.87 : x
  2. Step 2: Convert to fraction form
    147,333.43/203,344.53 = 86,918.87/x
  3. Step 3: Cross multiply
    147,333.43x = 203,344.53 × 86,918.87
  4. Step 4: Simplify right side
    147,333.43x = 17,674,476,950.70
  5. Step 5: Solve for x
    x = 17,674,476,950.70/147,333.43
  6. Step 6: Final answer
    x = 119,962.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.