Home / 149,825.76-206,688.48-101,445.36

Finding the Fourth Proportional to 149,825.76, 206,688.48 and 101,445.36

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Solution

The fourth proportional to 149,825.76, 206,688.48 and 101,445.36 is: 139,946.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,825.76 : 206,688.48 = 101,445.36 : x
  2. Step 2: Convert to fraction form
    149,825.76/206,688.48 = 101,445.36/x
  3. Step 3: Cross multiply
    149,825.76x = 206,688.48 × 101,445.36
  4. Step 4: Simplify right side
    149,825.76x = 20,967,587,261.45
  5. Step 5: Solve for x
    x = 20,967,587,261.45/149,825.76
  6. Step 6: Final answer
    x = 139,946.48

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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.