Home / 102,499.23-153,771.12-31,422.14

Finding the Fourth Proportional to 102,499.23, 153,771.12 and 31,422.14

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Solution

The fourth proportional to 102,499.23, 153,771.12 and 31,422.14 is: 47,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,499.23 : 153,771.12 = 31,422.14 : x
  2. Step 2: Convert to fraction form
    102,499.23/153,771.12 = 31,422.14/x
  3. Step 3: Cross multiply
    102,499.23x = 153,771.12 × 31,422.14
  4. Step 4: Simplify right side
    102,499.23x = 4,831,816,891.74
  5. Step 5: Solve for x
    x = 4,831,816,891.74/102,499.23
  6. Step 6: Final answer
    x = 47,140.03

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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.