Home / 160,749.87-221,831.51-89,129.26

Finding the Fourth Proportional to 160,749.87, 221,831.51 and 89,129.26

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Solution

The fourth proportional to 160,749.87, 221,831.51 and 89,129.26 is: 122,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,749.87 : 221,831.51 = 89,129.26 : x
  2. Step 2: Convert to fraction form
    160,749.87/221,831.51 = 89,129.26/x
  3. Step 3: Cross multiply
    160,749.87x = 221,831.51 × 89,129.26
  4. Step 4: Simplify right side
    160,749.87x = 19,771,678,663.98
  5. Step 5: Solve for x
    x = 19,771,678,663.98/160,749.87
  6. Step 6: Final answer
    x = 122,996.55

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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.