Home / 112,727.40-168,969.06-73,312.80

Finding the Fourth Proportional to 112,727.40, 168,969.06 and 73,312.80

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Solution

The fourth proportional to 112,727.40, 168,969.06 and 73,312.80 is: 109,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,727.40 : 168,969.06 = 73,312.80 : x
  2. Step 2: Convert to fraction form
    112,727.40/168,969.06 = 73,312.80/x
  3. Step 3: Cross multiply
    112,727.40x = 168,969.06 × 73,312.80
  4. Step 4: Simplify right side
    112,727.40x = 12,387,594,901.97
  5. Step 5: Solve for x
    x = 12,387,594,901.97/112,727.40
  6. Step 6: Final answer
    x = 109,889.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.