Home / 313,967.12-470,966.96-103,621.46

Finding the Fourth Proportional to 313,967.12, 470,966.96 and 103,621.46

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Solution

The fourth proportional to 313,967.12, 470,966.96 and 103,621.46 is: 155,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,967.12 : 470,966.96 = 103,621.46 : x
  2. Step 2: Convert to fraction form
    313,967.12/470,966.96 = 103,621.46/x
  3. Step 3: Cross multiply
    313,967.12x = 470,966.96 × 103,621.46
  4. Step 4: Simplify right side
    313,967.12x = 48,802,284,006.96
  5. Step 5: Solve for x
    x = 48,802,284,006.96/313,967.12
  6. Step 6: Final answer
    x = 155,437.56

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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.