Home / 99,821.60-149,734.80-29,703.20

Finding the Fourth Proportional to 99,821.60, 149,734.80 and 29,703.20

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Solution

The fourth proportional to 99,821.60, 149,734.80 and 29,703.20 is: 44,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,821.60 : 149,734.80 = 29,703.20 : x
  2. Step 2: Convert to fraction form
    99,821.60/149,734.80 = 29,703.20/x
  3. Step 3: Cross multiply
    99,821.60x = 149,734.80 × 29,703.20
  4. Step 4: Simplify right side
    99,821.60x = 4,447,602,711.36
  5. Step 5: Solve for x
    x = 4,447,602,711.36/99,821.60
  6. Step 6: Final answer
    x = 44,555.51

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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.