Home / 102,270.20-141,128.93-56,950.09

Finding the Fourth Proportional to 102,270.20, 141,128.93 and 56,950.09

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Solution

The fourth proportional to 102,270.20, 141,128.93 and 56,950.09 is: 78,588.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,270.20 : 141,128.93 = 56,950.09 : x
  2. Step 2: Convert to fraction form
    102,270.20/141,128.93 = 56,950.09/x
  3. Step 3: Cross multiply
    102,270.20x = 141,128.93 × 56,950.09
  4. Step 4: Simplify right side
    102,270.20x = 8,037,305,054.66
  5. Step 5: Solve for x
    x = 8,037,305,054.66/102,270.20
  6. Step 6: Final answer
    x = 78,588.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.