Home / 132,967.80-183,482.10-81,972.36

Finding the Fourth Proportional to 132,967.80, 183,482.10 and 81,972.36

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Solution

The fourth proportional to 132,967.80, 183,482.10 and 81,972.36 is: 113,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,967.80 : 183,482.10 = 81,972.36 : x
  2. Step 2: Convert to fraction form
    132,967.80/183,482.10 = 81,972.36/x
  3. Step 3: Cross multiply
    132,967.80x = 183,482.10 × 81,972.36
  4. Step 4: Simplify right side
    132,967.80x = 15,040,460,754.76
  5. Step 5: Solve for x
    x = 15,040,460,754.76/132,967.80
  6. Step 6: Final answer
    x = 113,113.56

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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.