Home / 132,912-183,416.04-72,483.12

Finding the Fourth Proportional to 132,912, 183,416.04 and 72,483.12

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Solution

The fourth proportional to 132,912, 183,416.04 and 72,483.12 is: 100,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,912 : 183,416.04 = 72,483.12 : x
  2. Step 2: Convert to fraction form
    132,912/183,416.04 = 72,483.12/x
  3. Step 3: Cross multiply
    132,912x = 183,416.04 × 72,483.12
  4. Step 4: Simplify right side
    132,912x = 13,294,566,837.24
  5. Step 5: Solve for x
    x = 13,294,566,837.24/132,912
  6. Step 6: Final answer
    x = 100,025.33

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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.