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Finding the Fourth Proportional to 134,879.30, 202,399.95 and 55,985.30

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Solution

The fourth proportional to 134,879.30, 202,399.95 and 55,985.30 is: 84,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,879.30 : 202,399.95 = 55,985.30 : x
  2. Step 2: Convert to fraction form
    134,879.30/202,399.95 = 55,985.30/x
  3. Step 3: Cross multiply
    134,879.30x = 202,399.95 × 55,985.30
  4. Step 4: Simplify right side
    134,879.30x = 11,331,421,920.74
  5. Step 5: Solve for x
    x = 11,331,421,920.74/134,879.30
  6. Step 6: Final answer
    x = 84,011.57

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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.