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Finding the Fourth Proportional to 134,684, 185,865.16 and 74,256.76

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Solution

The fourth proportional to 134,684, 185,865.16 and 74,256.76 is: 102,475.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,684 : 185,865.16 = 74,256.76 : x
  2. Step 2: Convert to fraction form
    134,684/185,865.16 = 74,256.76/x
  3. Step 3: Cross multiply
    134,684x = 185,865.16 × 74,256.76
  4. Step 4: Simplify right side
    134,684x = 13,801,744,578.48
  5. Step 5: Solve for x
    x = 13,801,744,578.48/134,684
  6. Step 6: Final answer
    x = 102,475.01

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1.5x scale

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.