Home / 153,140.96-229,693.20-40,829.60

Finding the Fourth Proportional to 153,140.96, 229,693.20 and 40,829.60

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Solution

The fourth proportional to 153,140.96, 229,693.20 and 40,829.60 is: 61,239.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,140.96 : 229,693.20 = 40,829.60 : x
  2. Step 2: Convert to fraction form
    153,140.96/229,693.20 = 40,829.60/x
  3. Step 3: Cross multiply
    153,140.96x = 229,693.20 × 40,829.60
  4. Step 4: Simplify right side
    153,140.96x = 9,378,281,478.72
  5. Step 5: Solve for x
    x = 9,378,281,478.72/153,140.96
  6. Step 6: Final answer
    x = 61,239.54

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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.