Home / 132,837.45-183,310.15-72,406.76

Finding the Fourth Proportional to 132,837.45, 183,310.15 and 72,406.76

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Solution

The fourth proportional to 132,837.45, 183,310.15 and 72,406.76 is: 99,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,837.45 : 183,310.15 = 72,406.76 : x
  2. Step 2: Convert to fraction form
    132,837.45/183,310.15 = 72,406.76/x
  3. Step 3: Cross multiply
    132,837.45x = 183,310.15 × 72,406.76
  4. Step 4: Simplify right side
    132,837.45x = 13,272,894,036.61
  5. Step 5: Solve for x
    x = 13,272,894,036.61/132,837.45
  6. Step 6: Final answer
    x = 99,918.31

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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.