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Finding the Fourth Proportional to 149,682.63, 224,404.68 and 86,430.94

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Solution

The fourth proportional to 149,682.63, 224,404.68 and 86,430.94 is: 129,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,682.63 : 224,404.68 = 86,430.94 : x
  2. Step 2: Convert to fraction form
    149,682.63/224,404.68 = 86,430.94/x
  3. Step 3: Cross multiply
    149,682.63x = 224,404.68 × 86,430.94
  4. Step 4: Simplify right side
    149,682.63x = 19,395,507,432.80
  5. Step 5: Solve for x
    x = 19,395,507,432.80/149,682.63
  6. Step 6: Final answer
    x = 129,577.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.