Home / 103,619.16-155,225.34-53,731.86

Finding the Fourth Proportional to 103,619.16, 155,225.34 and 53,731.86

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Solution

The fourth proportional to 103,619.16, 155,225.34 and 53,731.86 is: 80,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.16 : 155,225.34 = 53,731.86 : x
  2. Step 2: Convert to fraction form
    103,619.16/155,225.34 = 53,731.86/x
  3. Step 3: Cross multiply
    103,619.16x = 155,225.34 × 53,731.86
  4. Step 4: Simplify right side
    103,619.16x = 8,340,546,237.33
  5. Step 5: Solve for x
    x = 8,340,546,237.33/103,619.16
  6. Step 6: Final answer
    x = 80,492.32

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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.