Home / 112,833.55-155,727.45-72,015.31

Finding the Fourth Proportional to 112,833.55, 155,727.45 and 72,015.31

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Solution

The fourth proportional to 112,833.55, 155,727.45 and 72,015.31 is: 99,392.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,833.55 : 155,727.45 = 72,015.31 : x
  2. Step 2: Convert to fraction form
    112,833.55/155,727.45 = 72,015.31/x
  3. Step 3: Cross multiply
    112,833.55x = 155,727.45 × 72,015.31
  4. Step 4: Simplify right side
    112,833.55x = 11,214,760,197.94
  5. Step 5: Solve for x
    x = 11,214,760,197.94/112,833.55
  6. Step 6: Final answer
    x = 99,392.07

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1.5x scale

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.