Home / 131,154.41-180,986.68-74,564.57

Finding the Fourth Proportional to 131,154.41, 180,986.68 and 74,564.57

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Solution

The fourth proportional to 131,154.41, 180,986.68 and 74,564.57 is: 102,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,154.41 : 180,986.68 = 74,564.57 : x
  2. Step 2: Convert to fraction form
    131,154.41/180,986.68 = 74,564.57/x
  3. Step 3: Cross multiply
    131,154.41x = 180,986.68 × 74,564.57
  4. Step 4: Simplify right side
    131,154.41x = 13,495,193,969.93
  5. Step 5: Solve for x
    x = 13,495,193,969.93/131,154.41
  6. Step 6: Final answer
    x = 102,895.46

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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.