Home / 116,831.16-161,121.15-76,530.22

Finding the Fourth Proportional to 116,831.16, 161,121.15 and 76,530.22

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Solution

The fourth proportional to 116,831.16, 161,121.15 and 76,530.22 is: 105,542.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,831.16 : 161,121.15 = 76,530.22 : x
  2. Step 2: Convert to fraction form
    116,831.16/161,121.15 = 76,530.22/x
  3. Step 3: Cross multiply
    116,831.16x = 161,121.15 × 76,530.22
  4. Step 4: Simplify right side
    116,831.16x = 12,330,636,653.35
  5. Step 5: Solve for x
    x = 12,330,636,653.35/116,831.16
  6. Step 6: Final answer
    x = 105,542.36

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1.5x scale

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.