Home / 119,828.48-165,488.64-75,141.12

Finding the Fourth Proportional to 119,828.48, 165,488.64 and 75,141.12

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Solution

The fourth proportional to 119,828.48, 165,488.64 and 75,141.12 is: 103,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,828.48 : 165,488.64 = 75,141.12 : x
  2. Step 2: Convert to fraction form
    119,828.48/165,488.64 = 75,141.12/x
  3. Step 3: Cross multiply
    119,828.48x = 165,488.64 × 75,141.12
  4. Step 4: Simplify right side
    119,828.48x = 12,435,001,756.88
  5. Step 5: Solve for x
    x = 12,435,001,756.88/119,828.48
  6. Step 6: Final answer
    x = 103,773.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.