Home / 132,811.81-183,282.56-72,385.77

Finding the Fourth Proportional to 132,811.81, 183,282.56 and 72,385.77

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Solution

The fourth proportional to 132,811.81, 183,282.56 and 72,385.77 is: 99,893.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,811.81 : 183,282.56 = 72,385.77 : x
  2. Step 2: Convert to fraction form
    132,811.81/183,282.56 = 72,385.77/x
  3. Step 3: Cross multiply
    132,811.81x = 183,282.56 × 72,385.77
  4. Step 4: Simplify right side
    132,811.81x = 13,267,049,287.44
  5. Step 5: Solve for x
    x = 13,267,049,287.44/132,811.81
  6. Step 6: Final answer
    x = 99,893.59

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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.