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Finding the Fourth Proportional to 99,825.60, 149,740.80 and 29,707.20

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Solution

The fourth proportional to 99,825.60, 149,740.80 and 29,707.20 is: 44,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,825.60 : 149,740.80 = 29,707.20 : x
  2. Step 2: Convert to fraction form
    99,825.60/149,740.80 = 29,707.20/x
  3. Step 3: Cross multiply
    99,825.60x = 149,740.80 × 29,707.20
  4. Step 4: Simplify right side
    99,825.60x = 4,448,379,893.76
  5. Step 5: Solve for x
    x = 4,448,379,893.76/99,825.60
  6. Step 6: Final answer
    x = 44,561.51

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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.