Home / 103,475.57-142,771.37-60,430.64

Finding the Fourth Proportional to 103,475.57, 142,771.37 and 60,430.64

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Solution

The fourth proportional to 103,475.57, 142,771.37 and 60,430.64 is: 83,379.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,475.57 : 142,771.37 = 60,430.64 : x
  2. Step 2: Convert to fraction form
    103,475.57/142,771.37 = 60,430.64/x
  3. Step 3: Cross multiply
    103,475.57x = 142,771.37 × 60,430.64
  4. Step 4: Simplify right side
    103,475.57x = 8,627,764,246.77
  5. Step 5: Solve for x
    x = 8,627,764,246.77/103,475.57
  6. Step 6: Final answer
    x = 83,379.73

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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.