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Finding the Fourth Proportional to 134,967.53, 186,256.60 and 74,539.71

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Solution

The fourth proportional to 134,967.53, 186,256.60 and 74,539.71 is: 102,865.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,967.53 : 186,256.60 = 74,539.71 : x
  2. Step 2: Convert to fraction form
    134,967.53/186,256.60 = 74,539.71/x
  3. Step 3: Cross multiply
    134,967.53x = 186,256.60 × 74,539.71
  4. Step 4: Simplify right side
    134,967.53x = 13,883,512,763.24
  5. Step 5: Solve for x
    x = 13,883,512,763.24/134,967.53
  6. Step 6: Final answer
    x = 102,865.57

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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.