Home / 99,633.07-149,345.80-43,458.10

Finding the Fourth Proportional to 99,633.07, 149,345.80 and 43,458.10

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Solution

The fourth proportional to 99,633.07, 149,345.80 and 43,458.10 is: 65,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,633.07 : 149,345.80 = 43,458.10 : x
  2. Step 2: Convert to fraction form
    99,633.07/149,345.80 = 43,458.10/x
  3. Step 3: Cross multiply
    99,633.07x = 149,345.80 × 43,458.10
  4. Step 4: Simplify right side
    99,633.07x = 6,490,284,710.98
  5. Step 5: Solve for x
    x = 6,490,284,710.98/99,633.07
  6. Step 6: Final answer
    x = 65,141.87

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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.