Home / 189,821.75-284,624.80-77,370.26

Finding the Fourth Proportional to 189,821.75, 284,624.80 and 77,370.26

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Solution

The fourth proportional to 189,821.75, 284,624.80 and 77,370.26 is: 116,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,821.75 : 284,624.80 = 77,370.26 : x
  2. Step 2: Convert to fraction form
    189,821.75/284,624.80 = 77,370.26/x
  3. Step 3: Cross multiply
    189,821.75x = 284,624.80 × 77,370.26
  4. Step 4: Simplify right side
    189,821.75x = 22,021,495,296.58
  5. Step 5: Solve for x
    x = 22,021,495,296.58/189,821.75
  6. Step 6: Final answer
    x = 116,011.44

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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.