Home / 142,440.69-196,589.48-88,743.01

Finding the Fourth Proportional to 142,440.69, 196,589.48 and 88,743.01

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Solution

The fourth proportional to 142,440.69, 196,589.48 and 88,743.01 is: 122,478.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,440.69 : 196,589.48 = 88,743.01 : x
  2. Step 2: Convert to fraction form
    142,440.69/196,589.48 = 88,743.01/x
  3. Step 3: Cross multiply
    142,440.69x = 196,589.48 × 88,743.01
  4. Step 4: Simplify right side
    142,440.69x = 17,445,942,122.13
  5. Step 5: Solve for x
    x = 17,445,942,122.13/142,440.69
  6. Step 6: Final answer
    x = 122,478.64

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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.