Home / 142,181.60-196,209.33-77,650.52

Finding the Fourth Proportional to 142,181.60, 196,209.33 and 77,650.52

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Solution

The fourth proportional to 142,181.60, 196,209.33 and 77,650.52 is: 107,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,181.60 : 196,209.33 = 77,650.52 : x
  2. Step 2: Convert to fraction form
    142,181.60/196,209.33 = 77,650.52/x
  3. Step 3: Cross multiply
    142,181.60x = 196,209.33 × 77,650.52
  4. Step 4: Simplify right side
    142,181.60x = 15,235,756,503.35
  5. Step 5: Solve for x
    x = 15,235,756,503.35/142,181.60
  6. Step 6: Final answer
    x = 107,157.02

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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.