Home / 113,419.64-169,908.03-83,378.46

Finding the Fourth Proportional to 113,419.64, 169,908.03 and 83,378.46

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Solution

The fourth proportional to 113,419.64, 169,908.03 and 83,378.46 is: 124,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,419.64 : 169,908.03 = 83,378.46 : x
  2. Step 2: Convert to fraction form
    113,419.64/169,908.03 = 83,378.46/x
  3. Step 3: Cross multiply
    113,419.64x = 169,908.03 × 83,378.46
  4. Step 4: Simplify right side
    113,419.64x = 14,166,670,520.19
  5. Step 5: Solve for x
    x = 14,166,670,520.19/113,419.64
  6. Step 6: Final answer
    x = 124,904.91

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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.