Home / 102,108.84-153,163.34-31,993.62

Finding the Fourth Proportional to 102,108.84, 153,163.34 and 31,993.62

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Solution

The fourth proportional to 102,108.84, 153,163.34 and 31,993.62 is: 47,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,108.84 : 153,163.34 = 31,993.62 : x
  2. Step 2: Convert to fraction form
    102,108.84/153,163.34 = 31,993.62/x
  3. Step 3: Cross multiply
    102,108.84x = 153,163.34 × 31,993.62
  4. Step 4: Simplify right side
    102,108.84x = 4,900,249,697.89
  5. Step 5: Solve for x
    x = 4,900,249,697.89/102,108.84
  6. Step 6: Final answer
    x = 47,990.46

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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.