Home / 160,741.90-221,829.06-89,128.60

Finding the Fourth Proportional to 160,741.90, 221,829.06 and 89,128.60

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Solution

The fourth proportional to 160,741.90, 221,829.06 and 89,128.60 is: 123,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,741.90 : 221,829.06 = 89,128.60 : x
  2. Step 2: Convert to fraction form
    160,741.90/221,829.06 = 89,128.60/x
  3. Step 3: Cross multiply
    160,741.90x = 221,829.06 × 89,128.60
  4. Step 4: Simplify right side
    160,741.90x = 19,771,313,557.12
  5. Step 5: Solve for x
    x = 19,771,313,557.12/160,741.90
  6. Step 6: Final answer
    x = 123,000.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.