Home / 210,923.58-316,385.36-70,780.62

Finding the Fourth Proportional to 210,923.58, 316,385.36 and 70,780.62

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Solution

The fourth proportional to 210,923.58, 316,385.36 and 70,780.62 is: 106,170.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,923.58 : 316,385.36 = 70,780.62 : x
  2. Step 2: Convert to fraction form
    210,923.58/316,385.36 = 70,780.62/x
  3. Step 3: Cross multiply
    210,923.58x = 316,385.36 × 70,780.62
  4. Step 4: Simplify right side
    210,923.58x = 22,393,951,939.72
  5. Step 5: Solve for x
    x = 22,393,951,939.72/210,923.58
  6. Step 6: Final answer
    x = 106,170.93

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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.