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Finding the Fourth Proportional to 134,774.90, 185,985.33 and 75,158.90

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Solution

The fourth proportional to 134,774.90, 185,985.33 and 75,158.90 is: 103,717.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,774.90 : 185,985.33 = 75,158.90 : x
  2. Step 2: Convert to fraction form
    134,774.90/185,985.33 = 75,158.90/x
  3. Step 3: Cross multiply
    134,774.90x = 185,985.33 × 75,158.90
  4. Step 4: Simplify right side
    134,774.90x = 13,978,452,818.94
  5. Step 5: Solve for x
    x = 13,978,452,818.94/134,774.90
  6. Step 6: Final answer
    x = 103,717.03

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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.