Home / 116,502.90-160,779.82-65,531.68

Finding the Fourth Proportional to 116,502.90, 160,779.82 and 65,531.68

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Solution

The fourth proportional to 116,502.90, 160,779.82 and 65,531.68 is: 90,436.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,502.90 : 160,779.82 = 65,531.68 : x
  2. Step 2: Convert to fraction form
    116,502.90/160,779.82 = 65,531.68/x
  3. Step 3: Cross multiply
    116,502.90x = 160,779.82 × 65,531.68
  4. Step 4: Simplify right side
    116,502.90x = 10,536,170,910.80
  5. Step 5: Solve for x
    x = 10,536,170,910.80/116,502.90
  6. Step 6: Final answer
    x = 90,436.98

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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.