Home / 210,975.62-316,429.32-77,918.54

Finding the Fourth Proportional to 210,975.62, 316,429.32 and 77,918.54

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Solution

The fourth proportional to 210,975.62, 316,429.32 and 77,918.54 is: 116,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,975.62 : 316,429.32 = 77,918.54 : x
  2. Step 2: Convert to fraction form
    210,975.62/316,429.32 = 77,918.54/x
  3. Step 3: Cross multiply
    210,975.62x = 316,429.32 × 77,918.54
  4. Step 4: Simplify right side
    210,975.62x = 24,655,711,613.46
  5. Step 5: Solve for x
    x = 24,655,711,613.46/210,975.62
  6. Step 6: Final answer
    x = 116,865.22

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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.