Home / 160,631.82-240,877.80-85,735.26

Finding the Fourth Proportional to 160,631.82, 240,877.80 and 85,735.26

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Solution

The fourth proportional to 160,631.82, 240,877.80 and 85,735.26 is: 128,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,631.82 : 240,877.80 = 85,735.26 : x
  2. Step 2: Convert to fraction form
    160,631.82/240,877.80 = 85,735.26/x
  3. Step 3: Cross multiply
    160,631.82x = 240,877.80 × 85,735.26
  4. Step 4: Simplify right side
    160,631.82x = 20,651,720,811.23
  5. Step 5: Solve for x
    x = 20,651,720,811.23/160,631.82
  6. Step 6: Final answer
    x = 128,565.57

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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.