Home / 160,743.90-221,831.82-89,130.60

Finding the Fourth Proportional to 160,743.90, 221,831.82 and 89,130.60

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Solution

The fourth proportional to 160,743.90, 221,831.82 and 89,130.60 is: 123,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,743.90 : 221,831.82 = 89,130.60 : x
  2. Step 2: Convert to fraction form
    160,743.90/221,831.82 = 89,130.60/x
  3. Step 3: Cross multiply
    160,743.90x = 221,831.82 × 89,130.60
  4. Step 4: Simplify right side
    160,743.90x = 19,772,003,215.69
  5. Step 5: Solve for x
    x = 19,772,003,215.69/160,743.90
  6. Step 6: Final answer
    x = 123,003.13

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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.