Home / 155,913.32-215,160.40-84,293.32

Finding the Fourth Proportional to 155,913.32, 215,160.40 and 84,293.32

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Solution

The fourth proportional to 155,913.32, 215,160.40 and 84,293.32 is: 116,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,913.32 : 215,160.40 = 84,293.32 : x
  2. Step 2: Convert to fraction form
    155,913.32/215,160.40 = 84,293.32/x
  3. Step 3: Cross multiply
    155,913.32x = 215,160.40 × 84,293.32
  4. Step 4: Simplify right side
    155,913.32x = 18,136,584,448.53
  5. Step 5: Solve for x
    x = 18,136,584,448.53/155,913.32
  6. Step 6: Final answer
    x = 116,324.79

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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.