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Finding the Fourth Proportional to 103,352.96, 142,602.72 and 58,640.96

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Solution

The fourth proportional to 103,352.96, 142,602.72 and 58,640.96 is: 80,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,352.96 : 142,602.72 = 58,640.96 : x
  2. Step 2: Convert to fraction form
    103,352.96/142,602.72 = 58,640.96/x
  3. Step 3: Cross multiply
    103,352.96x = 142,602.72 × 58,640.96
  4. Step 4: Simplify right side
    103,352.96x = 8,362,360,399.41
  5. Step 5: Solve for x
    x = 8,362,360,399.41/103,352.96
  6. Step 6: Final answer
    x = 80,910.70

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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.