Home / 132,943.45-183,462.53-72,515.39

Finding the Fourth Proportional to 132,943.45, 183,462.53 and 72,515.39

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Solution

The fourth proportional to 132,943.45, 183,462.53 and 72,515.39 is: 100,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,943.45 : 183,462.53 = 72,515.39 : x
  2. Step 2: Convert to fraction form
    132,943.45/183,462.53 = 72,515.39/x
  3. Step 3: Cross multiply
    132,943.45x = 183,462.53 × 72,515.39
  4. Step 4: Simplify right side
    132,943.45x = 13,303,856,913.34
  5. Step 5: Solve for x
    x = 13,303,856,913.34/132,943.45
  6. Step 6: Final answer
    x = 100,071.55

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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.