Home / 112,718.40-168,955.56-73,303.80

Finding the Fourth Proportional to 112,718.40, 168,955.56 and 73,303.80

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Solution

The fourth proportional to 112,718.40, 168,955.56 and 73,303.80 is: 109,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,718.40 : 168,955.56 = 73,303.80 : x
  2. Step 2: Convert to fraction form
    112,718.40/168,955.56 = 73,303.80/x
  3. Step 3: Cross multiply
    112,718.40x = 168,955.56 × 73,303.80
  4. Step 4: Simplify right side
    112,718.40x = 12,385,084,579.13
  5. Step 5: Solve for x
    x = 12,385,084,579.13/112,718.40
  6. Step 6: Final answer
    x = 109,876.33

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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.