Home / 99,990.10-149,970.39-36,795.52

Finding the Fourth Proportional to 99,990.10, 149,970.39 and 36,795.52

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Solution

The fourth proportional to 99,990.10, 149,970.39 and 36,795.52 is: 55,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,990.10 : 149,970.39 = 36,795.52 : x
  2. Step 2: Convert to fraction form
    99,990.10/149,970.39 = 36,795.52/x
  3. Step 3: Cross multiply
    99,990.10x = 149,970.39 × 36,795.52
  4. Step 4: Simplify right side
    99,990.10x = 5,518,237,690.55
  5. Step 5: Solve for x
    x = 5,518,237,690.55/99,990.10
  6. Step 6: Final answer
    x = 55,187.84

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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.