Home / 147,218.79-203,168.16-83,562.51

Finding the Fourth Proportional to 147,218.79, 203,168.16 and 83,562.51

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Solution

The fourth proportional to 147,218.79, 203,168.16 and 83,562.51 is: 115,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,218.79 : 203,168.16 = 83,562.51 : x
  2. Step 2: Convert to fraction form
    147,218.79/203,168.16 = 83,562.51/x
  3. Step 3: Cross multiply
    147,218.79x = 203,168.16 × 83,562.51
  4. Step 4: Simplify right side
    147,218.79x = 16,977,241,401.68
  5. Step 5: Solve for x
    x = 16,977,241,401.68/147,218.79
  6. Step 6: Final answer
    x = 115,319.80

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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.