Home / 132,941.81-183,460.28-72,513.75

Finding the Fourth Proportional to 132,941.81, 183,460.28 and 72,513.75

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Solution

The fourth proportional to 132,941.81, 183,460.28 and 72,513.75 is: 100,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,941.81 : 183,460.28 = 72,513.75 : x
  2. Step 2: Convert to fraction form
    132,941.81/183,460.28 = 72,513.75/x
  3. Step 3: Cross multiply
    132,941.81x = 183,460.28 × 72,513.75
  4. Step 4: Simplify right side
    132,941.81x = 13,303,393,204.26
  5. Step 5: Solve for x
    x = 13,303,393,204.26/132,941.81
  6. Step 6: Final answer
    x = 100,069.29

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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.