Home / 153,898.20-230,430.24-79,870.68

Finding the Fourth Proportional to 153,898.20, 230,430.24 and 79,870.68

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Solution

The fourth proportional to 153,898.20, 230,430.24 and 79,870.68 is: 119,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,898.20 : 230,430.24 = 79,870.68 : x
  2. Step 2: Convert to fraction form
    153,898.20/230,430.24 = 79,870.68/x
  3. Step 3: Cross multiply
    153,898.20x = 230,430.24 × 79,870.68
  4. Step 4: Simplify right side
    153,898.20x = 18,404,619,961.36
  5. Step 5: Solve for x
    x = 18,404,619,961.36/153,898.20
  6. Step 6: Final answer
    x = 119,589.57

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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.