Home / 99,784.99-149,598-57,617.20

Finding the Fourth Proportional to 99,784.99, 149,598 and 57,617.20

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Solution

The fourth proportional to 99,784.99, 149,598 and 57,617.20 is: 86,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,784.99 : 149,598 = 57,617.20 : x
  2. Step 2: Convert to fraction form
    99,784.99/149,598 = 57,617.20/x
  3. Step 3: Cross multiply
    99,784.99x = 149,598 × 57,617.20
  4. Step 4: Simplify right side
    99,784.99x = 8,619,417,511.61
  5. Step 5: Solve for x
    x = 8,619,417,511.61/99,784.99
  6. Step 6: Final answer
    x = 86,379.90

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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.