Home / 99,729.81-149,509.68-43,527.90

Finding the Fourth Proportional to 99,729.81, 149,509.68 and 43,527.90

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Solution

The fourth proportional to 99,729.81, 149,509.68 and 43,527.90 is: 65,254.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,729.81 : 149,509.68 = 43,527.90 : x
  2. Step 2: Convert to fraction form
    99,729.81/149,509.68 = 43,527.90/x
  3. Step 3: Cross multiply
    99,729.81x = 149,509.68 × 43,527.90
  4. Step 4: Simplify right side
    99,729.81x = 6,507,841,652.52
  5. Step 5: Solve for x
    x = 6,507,841,652.52/99,729.81
  6. Step 6: Final answer
    x = 65,254.73

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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.