Home / 155,948.10-215,208.22-84,327.94

Finding the Fourth Proportional to 155,948.10, 215,208.22 and 84,327.94

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Solution

The fourth proportional to 155,948.10, 215,208.22 and 84,327.94 is: 116,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,948.10 : 215,208.22 = 84,327.94 : x
  2. Step 2: Convert to fraction form
    155,948.10/215,208.22 = 84,327.94/x
  3. Step 3: Cross multiply
    155,948.10x = 215,208.22 × 84,327.94
  4. Step 4: Simplify right side
    155,948.10x = 18,148,065,863.67
  5. Step 5: Solve for x
    x = 18,148,065,863.67/155,948.10
  6. Step 6: Final answer
    x = 116,372.47

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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.