Home / 210,830.82-316,370.97-77,803.71

Finding the Fourth Proportional to 210,830.82, 316,370.97 and 77,803.71

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Solution

The fourth proportional to 210,830.82, 316,370.97 and 77,803.71 is: 116,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,830.82 : 316,370.97 = 77,803.71 : x
  2. Step 2: Convert to fraction form
    210,830.82/316,370.97 = 77,803.71/x
  3. Step 3: Cross multiply
    210,830.82x = 316,370.97 × 77,803.71
  4. Step 4: Simplify right side
    210,830.82x = 24,614,835,202.30
  5. Step 5: Solve for x
    x = 24,614,835,202.30/210,830.82
  6. Step 6: Final answer
    x = 116,751.60

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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.