Home / 155,972.40-215,241.21-84,352.47

Finding the Fourth Proportional to 155,972.40, 215,241.21 and 84,352.47

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Solution

The fourth proportional to 155,972.40, 215,241.21 and 84,352.47 is: 116,406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,972.40 : 215,241.21 = 84,352.47 : x
  2. Step 2: Convert to fraction form
    155,972.40/215,241.21 = 84,352.47/x
  3. Step 3: Cross multiply
    155,972.40x = 215,241.21 × 84,352.47
  4. Step 4: Simplify right side
    155,972.40x = 18,156,127,709.29
  5. Step 5: Solve for x
    x = 18,156,127,709.29/155,972.40
  6. Step 6: Final answer
    x = 116,406.03

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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.