Home / 112,172.43-154,798.07-64,435.02

Finding the Fourth Proportional to 112,172.43, 154,798.07 and 64,435.02

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Solution

The fourth proportional to 112,172.43, 154,798.07 and 64,435.02 is: 88,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172.43 : 154,798.07 = 64,435.02 : x
  2. Step 2: Convert to fraction form
    112,172.43/154,798.07 = 64,435.02/x
  3. Step 3: Cross multiply
    112,172.43x = 154,798.07 × 64,435.02
  4. Step 4: Simplify right side
    112,172.43x = 9,974,416,736.41
  5. Step 5: Solve for x
    x = 9,974,416,736.41/112,172.43
  6. Step 6: Final answer
    x = 88,920.39

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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.