Home / 153,429.20-230,166.48-78,591.68

Finding the Fourth Proportional to 153,429.20, 230,166.48 and 78,591.68

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Solution

The fourth proportional to 153,429.20, 230,166.48 and 78,591.68 is: 117,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,429.20 : 230,166.48 = 78,591.68 : x
  2. Step 2: Convert to fraction form
    153,429.20/230,166.48 = 78,591.68/x
  3. Step 3: Cross multiply
    153,429.20x = 230,166.48 × 78,591.68
  4. Step 4: Simplify right side
    153,429.20x = 18,089,170,342.89
  5. Step 5: Solve for x
    x = 18,089,170,342.89/153,429.20
  6. Step 6: Final answer
    x = 117,899.14

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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.