Home / 197,381.69-272,386.45-111,340.40

Finding the Fourth Proportional to 197,381.69, 272,386.45 and 111,340.40

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Solution

The fourth proportional to 197,381.69, 272,386.45 and 111,340.40 is: 153,649.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,381.69 : 272,386.45 = 111,340.40 : x
  2. Step 2: Convert to fraction form
    197,381.69/272,386.45 = 111,340.40/x
  3. Step 3: Cross multiply
    197,381.69x = 272,386.45 × 111,340.40
  4. Step 4: Simplify right side
    197,381.69x = 30,327,615,214.62
  5. Step 5: Solve for x
    x = 30,327,615,214.62/197,381.69
  6. Step 6: Final answer
    x = 153,649.59

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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.