Home / 132,889.16-183,383.65-72,459.92

Finding the Fourth Proportional to 132,889.16, 183,383.65 and 72,459.92

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Solution

The fourth proportional to 132,889.16, 183,383.65 and 72,459.92 is: 99,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,889.16 : 183,383.65 = 72,459.92 : x
  2. Step 2: Convert to fraction form
    132,889.16/183,383.65 = 72,459.92/x
  3. Step 3: Cross multiply
    132,889.16x = 183,383.65 × 72,459.92
  4. Step 4: Simplify right side
    132,889.16x = 13,287,964,608.31
  5. Step 5: Solve for x
    x = 13,287,964,608.31/132,889.16
  6. Step 6: Final answer
    x = 99,992.84

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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.