Home / 165,123.40-247,516.97-65,146.36

Finding the Fourth Proportional to 165,123.40, 247,516.97 and 65,146.36

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Solution

The fourth proportional to 165,123.40, 247,516.97 and 65,146.36 is: 97,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,123.40 : 247,516.97 = 65,146.36 : x
  2. Step 2: Convert to fraction form
    165,123.40/247,516.97 = 65,146.36/x
  3. Step 3: Cross multiply
    165,123.40x = 247,516.97 × 65,146.36
  4. Step 4: Simplify right side
    165,123.40x = 16,124,828,396.14
  5. Step 5: Solve for x
    x = 16,124,828,396.14/165,123.40
  6. Step 6: Final answer
    x = 97,653.20

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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.