Home / 153,888.20-231,005.10-118,982.60

Finding the Fourth Proportional to 153,888.20, 231,005.10 and 118,982.60

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Solution

The fourth proportional to 153,888.20, 231,005.10 and 118,982.60 is: 178,607.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,888.20 : 231,005.10 = 118,982.60 : x
  2. Step 2: Convert to fraction form
    153,888.20/231,005.10 = 118,982.60/x
  3. Step 3: Cross multiply
    153,888.20x = 231,005.10 × 118,982.60
  4. Step 4: Simplify right side
    153,888.20x = 27,485,587,411.26
  5. Step 5: Solve for x
    x = 27,485,587,411.26/153,888.20
  6. Step 6: Final answer
    x = 178,607.50

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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.