Home / 210,814.25-316,221.98-77,636.88

Finding the Fourth Proportional to 210,814.25, 316,221.98 and 77,636.88

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Solution

The fourth proportional to 210,814.25, 316,221.98 and 77,636.88 is: 116,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,814.25 : 316,221.98 = 77,636.88 : x
  2. Step 2: Convert to fraction form
    210,814.25/316,221.98 = 77,636.88/x
  3. Step 3: Cross multiply
    210,814.25x = 316,221.98 × 77,636.88
  4. Step 4: Simplify right side
    210,814.25x = 24,550,487,526.44
  5. Step 5: Solve for x
    x = 24,550,487,526.44/210,814.25
  6. Step 6: Final answer
    x = 116,455.54

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1.5x scale

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.