Home / 212,021.55-317,602.94-98,007.39

Finding the Fourth Proportional to 212,021.55, 317,602.94 and 98,007.39

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Solution

The fourth proportional to 212,021.55, 317,602.94 and 98,007.39 is: 146,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,021.55 : 317,602.94 = 98,007.39 : x
  2. Step 2: Convert to fraction form
    212,021.55/317,602.94 = 98,007.39/x
  3. Step 3: Cross multiply
    212,021.55x = 317,602.94 × 98,007.39
  4. Step 4: Simplify right side
    212,021.55x = 31,127,434,715.69
  5. Step 5: Solve for x
    x = 31,127,434,715.69/212,021.55
  6. Step 6: Final answer
    x = 146,812.60

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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.