Home / 100,746.86-151,114.81-30,620.70

Finding the Fourth Proportional to 100,746.86, 151,114.81 and 30,620.70

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Solution

The fourth proportional to 100,746.86, 151,114.81 and 30,620.70 is: 45,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,746.86 : 151,114.81 = 30,620.70 : x
  2. Step 2: Convert to fraction form
    100,746.86/151,114.81 = 30,620.70/x
  3. Step 3: Cross multiply
    100,746.86x = 151,114.81 × 30,620.70
  4. Step 4: Simplify right side
    100,746.86x = 4,627,241,262.57
  5. Step 5: Solve for x
    x = 4,627,241,262.57/100,746.86
  6. Step 6: Final answer
    x = 45,929.38

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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.