Home / 133,107.12-183,718.80-87,793.20

Finding the Fourth Proportional to 133,107.12, 183,718.80 and 87,793.20

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Solution

The fourth proportional to 133,107.12, 183,718.80 and 87,793.20 is: 121,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,107.12 : 183,718.80 = 87,793.20 : x
  2. Step 2: Convert to fraction form
    133,107.12/183,718.80 = 87,793.20/x
  3. Step 3: Cross multiply
    133,107.12x = 183,718.80 × 87,793.20
  4. Step 4: Simplify right side
    133,107.12x = 16,129,261,352.16
  5. Step 5: Solve for x
    x = 16,129,261,352.16/133,107.12
  6. Step 6: Final answer
    x = 121,175.05

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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.