Home / 210,680.07-316,051.59-77,550.21

Finding the Fourth Proportional to 210,680.07, 316,051.59 and 77,550.21

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Solution

The fourth proportional to 210,680.07, 316,051.59 and 77,550.21 is: 116,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,680.07 : 316,051.59 = 77,550.21 : x
  2. Step 2: Convert to fraction form
    210,680.07/316,051.59 = 77,550.21/x
  3. Step 3: Cross multiply
    210,680.07x = 316,051.59 × 77,550.21
  4. Step 4: Simplify right side
    210,680.07x = 24,509,867,175.33
  5. Step 5: Solve for x
    x = 24,509,867,175.33/210,680.07
  6. Step 6: Final answer
    x = 116,336.90

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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.