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Finding the Fourth Proportional to 181,707.40, 272,042.70 and 111,723.40

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Solution

The fourth proportional to 181,707.40, 272,042.70 and 111,723.40 is: 167,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,707.40 : 272,042.70 = 111,723.40 : x
  2. Step 2: Convert to fraction form
    181,707.40/272,042.70 = 111,723.40/x
  3. Step 3: Cross multiply
    181,707.40x = 272,042.70 × 111,723.40
  4. Step 4: Simplify right side
    181,707.40x = 30,393,535,389.18
  5. Step 5: Solve for x
    x = 30,393,535,389.18/181,707.40
  6. Step 6: Final answer
    x = 167,266.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.