Home / 119,964.20-179,946.30-77,973.80

Finding the Fourth Proportional to 119,964.20, 179,946.30 and 77,973.80

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Solution

The fourth proportional to 119,964.20, 179,946.30 and 77,973.80 is: 116,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,964.20 : 179,946.30 = 77,973.80 : x
  2. Step 2: Convert to fraction form
    119,964.20/179,946.30 = 77,973.80/x
  3. Step 3: Cross multiply
    119,964.20x = 179,946.30 × 77,973.80
  4. Step 4: Simplify right side
    119,964.20x = 14,031,096,806.94
  5. Step 5: Solve for x
    x = 14,031,096,806.94/119,964.20
  6. Step 6: Final answer
    x = 116,960.70

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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.