Home / 147,216.79-203,165.40-83,560.51

Finding the Fourth Proportional to 147,216.79, 203,165.40 and 83,560.51

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Solution

The fourth proportional to 147,216.79, 203,165.40 and 83,560.51 is: 115,317.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,216.79 : 203,165.40 = 83,560.51 : x
  2. Step 2: Convert to fraction form
    147,216.79/203,165.40 = 83,560.51/x
  3. Step 3: Cross multiply
    147,216.79x = 203,165.40 × 83,560.51
  4. Step 4: Simplify right side
    147,216.79x = 16,976,604,438.35
  5. Step 5: Solve for x
    x = 16,976,604,438.35/147,216.79
  6. Step 6: Final answer
    x = 115,317.04

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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.