Home / 142,041.82-196,018.65-77,515.60

Finding the Fourth Proportional to 142,041.82, 196,018.65 and 77,515.60

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Solution

The fourth proportional to 142,041.82, 196,018.65 and 77,515.60 is: 106,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,041.82 : 196,018.65 = 77,515.60 : x
  2. Step 2: Convert to fraction form
    142,041.82/196,018.65 = 77,515.60/x
  3. Step 3: Cross multiply
    142,041.82x = 196,018.65 × 77,515.60
  4. Step 4: Simplify right side
    142,041.82x = 15,194,503,265.94
  5. Step 5: Solve for x
    x = 15,194,503,265.94/142,041.82
  6. Step 6: Final answer
    x = 106,972.04

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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.