Home / 99,828.56-149,750.01-31,434.23

Finding the Fourth Proportional to 99,828.56, 149,750.01 and 31,434.23

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Solution

The fourth proportional to 99,828.56, 149,750.01 and 31,434.23 is: 47,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,828.56 : 149,750.01 = 31,434.23 : x
  2. Step 2: Convert to fraction form
    99,828.56/149,750.01 = 31,434.23/x
  3. Step 3: Cross multiply
    99,828.56x = 149,750.01 × 31,434.23
  4. Step 4: Simplify right side
    99,828.56x = 4,707,275,508.09
  5. Step 5: Solve for x
    x = 4,707,275,508.09/99,828.56
  6. Step 6: Final answer
    x = 47,153.60

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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.