Home / 102,209.70-141,048.33-56,887.02

Finding the Fourth Proportional to 102,209.70, 141,048.33 and 56,887.02

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Solution

The fourth proportional to 102,209.70, 141,048.33 and 56,887.02 is: 78,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,209.70 : 141,048.33 = 56,887.02 : x
  2. Step 2: Convert to fraction form
    102,209.70/141,048.33 = 56,887.02/x
  3. Step 3: Cross multiply
    102,209.70x = 141,048.33 × 56,887.02
  4. Step 4: Simplify right side
    102,209.70x = 8,023,819,169.68
  5. Step 5: Solve for x
    x = 8,023,819,169.68/102,209.70
  6. Step 6: Final answer
    x = 78,503.50

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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.