Home / 157,709.31-236,562.75-39,379.86

Finding the Fourth Proportional to 157,709.31, 236,562.75 and 39,379.86

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Solution

The fourth proportional to 157,709.31, 236,562.75 and 39,379.86 is: 59,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,709.31 : 236,562.75 = 39,379.86 : x
  2. Step 2: Convert to fraction form
    157,709.31/236,562.75 = 39,379.86/x
  3. Step 3: Cross multiply
    157,709.31x = 236,562.75 × 39,379.86
  4. Step 4: Simplify right side
    157,709.31x = 9,315,807,976.22
  5. Step 5: Solve for x
    x = 9,315,807,976.22/157,709.31
  6. Step 6: Final answer
    x = 59,069.49

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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.