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Finding the Fourth Proportional to 100,800.68, 151,217.32 and 30,663.50

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Solution

The fourth proportional to 100,800.68, 151,217.32 and 30,663.50 is: 46,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,800.68 : 151,217.32 = 30,663.50 : x
  2. Step 2: Convert to fraction form
    100,800.68/151,217.32 = 30,663.50/x
  3. Step 3: Cross multiply
    100,800.68x = 151,217.32 × 30,663.50
  4. Step 4: Simplify right side
    100,800.68x = 4,636,852,291.82
  5. Step 5: Solve for x
    x = 4,636,852,291.82/100,800.68
  6. Step 6: Final answer
    x = 46,000.21

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1.5x scale

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.