Home / 119,972.58-180,019.92-72,700.62

Finding the Fourth Proportional to 119,972.58, 180,019.92 and 72,700.62

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Solution

The fourth proportional to 119,972.58, 180,019.92 and 72,700.62 is: 109,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,972.58 : 180,019.92 = 72,700.62 : x
  2. Step 2: Convert to fraction form
    119,972.58/180,019.92 = 72,700.62/x
  3. Step 3: Cross multiply
    119,972.58x = 180,019.92 × 72,700.62
  4. Step 4: Simplify right side
    119,972.58x = 13,087,559,796.35
  5. Step 5: Solve for x
    x = 13,087,559,796.35/119,972.58
  6. Step 6: Final answer
    x = 109,087.92

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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.