Home / 166,543.12-229,831.32-91,090

Finding the Fourth Proportional to 166,543.12, 229,831.32 and 91,090

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Solution

The fourth proportional to 166,543.12, 229,831.32 and 91,090 is: 125,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,543.12 : 229,831.32 = 91,090 : x
  2. Step 2: Convert to fraction form
    166,543.12/229,831.32 = 91,090/x
  3. Step 3: Cross multiply
    166,543.12x = 229,831.32 × 91,090
  4. Step 4: Simplify right side
    166,543.12x = 20,935,334,938.80
  5. Step 5: Solve for x
    x = 20,935,334,938.80/166,543.12
  6. Step 6: Final answer
    x = 125,705.19

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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.