Home / 132,835.92-183,308.20-72,405.28

Finding the Fourth Proportional to 132,835.92, 183,308.20 and 72,405.28

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Solution

The fourth proportional to 132,835.92, 183,308.20 and 72,405.28 is: 99,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,835.92 : 183,308.20 = 72,405.28 : x
  2. Step 2: Convert to fraction form
    132,835.92/183,308.20 = 72,405.28/x
  3. Step 3: Cross multiply
    132,835.92x = 183,308.20 × 72,405.28
  4. Step 4: Simplify right side
    132,835.92x = 13,272,481,547.30
  5. Step 5: Solve for x
    x = 13,272,481,547.30/132,835.92
  6. Step 6: Final answer
    x = 99,916.36

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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.