Home / 157,715.32-236,571.74-39,385.86

Finding the Fourth Proportional to 157,715.32, 236,571.74 and 39,385.86

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Solution

The fourth proportional to 157,715.32, 236,571.74 and 39,385.86 is: 59,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,715.32 : 236,571.74 = 39,385.86 : x
  2. Step 2: Convert to fraction form
    157,715.32/236,571.74 = 39,385.86/x
  3. Step 3: Cross multiply
    157,715.32x = 236,571.74 × 39,385.86
  4. Step 4: Simplify right side
    157,715.32x = 9,317,581,431.60
  5. Step 5: Solve for x
    x = 9,317,581,431.60/157,715.32
  6. Step 6: Final answer
    x = 59,078.48

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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.