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Finding the Fourth Proportional to 149,164.74, 223,542.59 and 78,903.72

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Solution

The fourth proportional to 149,164.74, 223,542.59 and 78,903.72 is: 118,247.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,164.74 : 223,542.59 = 78,903.72 : x
  2. Step 2: Convert to fraction form
    149,164.74/223,542.59 = 78,903.72/x
  3. Step 3: Cross multiply
    149,164.74x = 223,542.59 × 78,903.72
  4. Step 4: Simplify right side
    149,164.74x = 17,638,341,534.92
  5. Step 5: Solve for x
    x = 17,638,341,534.92/149,164.74
  6. Step 6: Final answer
    x = 118,247.39

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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.